Power Liftgate System Inhibit Monitors
The following is a list of inhibit monitors as observed by an appropriate scan tool.
POWER LIFTGATE SYSTEM INHIBIT MONITORS TABLE
| INHIBIT MONITOR | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| $80 OPEN INHIBIT - VOLTAGE TOO LOW | Low or dead battery | Charge or replace battery |
| $82 CLOSE INHIBIT - VOLTAGE TOO LOW | Power or ground to the power liftgate module | Check power/ground circuits and repair as necessary |
| - | Inaccurate voltage reading from the power liftgate module | Compare the power liftgate module battery reading through the scan tool with a voltmeter reading at the power liftgate module power/ground connections. If a voltage difference of 0.5V or greater is present replace the power liftgate module |
| $81 OPEN INHIBIT - VOLTAGE TOO HIGH | Charging system over voltage concern | Diagnose charging system and repair as necessary |
| $83 CLOSE INHIBIT - VOLTAGE TOO HIGH | Inaccurate voltage reading from the power liftgate module | Compare the power liftgate module battery reading through the scan tool with a voltmeter reading at the power liftgate module power/ground connections. If a voltage difference of 0.5V or greater is present replace the power liftgate module |
| $84 OPEN INHIBIT - TEMPERATURE TOO LOW | Temperature was below -30°C (-22°F) when the operation was attempted | Inform customer of temperature operating range |
| $86 CLOSE INHIBIT - TEMPERATURE TOO LOW | High resistance to right pinch sensor/thermistor circuit signal or ground | Check signal/ground circuits (including in-line connectors) and repair as necessary |
| - | Inoperative right pinch sensor/thermistor | Allow vehicle to sit in a constant temperature environment for one hour with the liftgate open. Measure the resistance of the right pinch sensor/thermistor and compare the values with those in the pinch sensor section. See Diagnosis and Testing . If the resistance is out of range, replace the right pinch sensor/thermistor |
| - | Inaccurate temperature reading from the power liftgate control module | Allow vehicle to sit in a constant temperature environment for one hour with the liftgate open. Check the power liftgate control module temperature reading using a scan tool. If the reading is greater than 4.5°C (8°F) off, measure the resistance of the right pinch sensor/thermistor and compare the values with those in the pinch sensor section. See Operation . If the right pinch sensor/thermistor resistance is OK, replace the power liftgate control module |
| $85 OPEN INHIBIT - TEMPERATURE TOO HIGH | Temperature was above 65°C (149°F) when the operation was attempted | Inform customer of temperature operating range |
| $87 CLOSE INHIBIT - TEMPERATURE TOO HIGH | Short or partial short to ground to right pinch sensor/thermistor circuit signal | Check signal circuit and repair as necessary |
| - | Inoperative right pinch sensor/thermistor | Allow vehicle to sit in a constant temperature environment for one hour with the liftgate open. Measure the resistance of the right pinch sensor/thermistor and compare the values with those in the pinch sensor section. See Operation . If the resistance is out of range, replace the right pinch sensor/thermistor |
| - | Inaccurate temperature reading from the power liftgate control module | Allow vehicle to sit in a constant temperature environment for one hour with the liftgate open. Check the power liftgate control module temperature reading using a scan tool. If the reading is greater than 4.5°C (8°F) off, measure the resistance of the right pinch sensor/thermistor and compare the values with those in the pinch sensor section. See Operation . If the right pinch sensor/thermistor resistance is OK, replace the power liftgate control module |
| $88 CLOSE INHIBIT - LEFT PINCH SENSOR ACTIVE | Pinch was activated prior to activation of power close cycle | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | Short to ground on left pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative left pinch sensor | Measure the resistance of the left pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the left pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the left pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $89 CLOSE INHIBIT - RIGHT PINCH SENSOR ACTIVE | Pinch was activated prior to activation of power close cycle | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | Short to ground on right pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative right pinch sensor | Measure the resistance of the right pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the right pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the right pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $8A OPEN INHIBIT - NOT IN PARK/NEUTRAL | Operator attempted "power open" when vehicle was not in Park/Neutral | Inform customer of operating restrictions |
| - | Operator attempted exterior handle switch latch release when vehicle was not in Park/Neutral | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Transmission range sensor problem | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify PRNDL status reads correctly. If NOT OK, verify proper operation of the transmission range sensor, repair as necessary. |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is correct under different voltage and driving conditions. Repair as necessary |
| $8B CLOSE INHIBIT - NOT IN PARK/NEUTRAL | Operator attempted "power close" when vehicle was not in Park/Neutral | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Transmission range sensor problem | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify PRNDL status reads correctly. If NOT OK, verify proper operation of the transmission range sensor, repair as necessary. |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| $8C OPEN INHIBIT - NON-ZERO VEHICLE SPEED | Operator attempted "power open" when vehicle is in Neutral and rolling | Inform customer of operating restrictions |
| - | Operator attempted exterior handle switch latch release when vehicle was not in Park/Neutral | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Vehicle speed sensor | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify vehicle speed reads correctly. If NOT OK, verify proper operation of the vehicle speed sensor, repair as necessary. |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is correct under different voltage and driving conditions. Repair as necessary |
| $8D CLOSE INHIBIT - NON-ZERO VEHICLE SPEED | Operator attempted "power close" when vehicle is in Neutral and rolling | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Vehicle speed sensor | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify vehicle speed reads correctly. If NOT OK, verify proper operation of the vehicle speed sensor, repair as necessary. |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| $8E OPEN INHIBIT - IGNITION IN START POSITION | Operator attempted "power open" with the ignition in the Start position | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| $8F CLOSE INHIBIT - IGNITION IN START POSITION | Operator attempted "power close" with the ignition in the Start position | Inform customer of operating restrictions |
| - | Ignition status problem | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Verify proper operation of the key fob and keyless entry system. Repair as necessary |
| $90 OPEN INHIBIT - IN-PLANT MODE | Power Open will not function because the power liftgate control module is in the In-Plant mode | Using a scan tool, perform the power liftgate control module learn cycle. See Standard Procedure . If learn cycle does not correct the problem replace the power liftgate control module |
| $91 CLOSE INHIBIT - IN-PLANT MODE | Power Close will not function because the power liftgate control module is in the In-Plant mode | Using a scan tool, perform the power liftgate control module learn cycle. See Standard Procedure . If learn cycle does not correct the problem replace the power liftgate control module |
| $92 OPEN INHIBIT - GEAR/SPEED MISMATCH | Power Open will not function because of a conflict between the PRNDL and vehicle speed inputs | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify vehicle speed reads correctly. If NOT OK, verify proper operation of the vehicle speed sensor, repair as necessary. |
| - | - | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify PRNDL status reads correctly. If NOT OK, verify proper operation of the transmission range sensor, repair as necessary. |
| - | - | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | - | The inhibitor could have been operator induced by placing the transmission in Park when the vehicle is still rolling and immediately attempting an Open liftgate command |
| $93 CLOSE INHIBIT - GEAR/SPEED MISMATCH | Power Close will not function because of a conflict between the PRNDL and vehicle speed inputs | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify vehicle speed reads correctly. If NOT OK, verify proper operation of the vehicle speed sensor, repair as necessary. |
| - | - | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify PRNDL status reads correctly. If NOT OK, verify proper operation of the transmission range sensor, repair as necessary. |
| - | - | Verify the ignition switch status reads correctly using a scan tool. Repair as necessary |
| - | - | The inhibitor could have been operator induced by placing the transmission in Park when the vehicle is still rolling and immediately attempting a Close liftgate command |
| $94 OPEN INHIBIT - NOT FULLY OPEN OR FULLY CLOSED | Operator induced by placing the liftgate in the primary or secondary latch position when the liftgate was open | Inform customer of proper power liftgate/latch operation |
| - | Conflict in liftgate latch switches and full open switch | Using a scan tool, observe the liftgate latch "Full Open, Primary, Secondary, Sector and Paw" switch readings with the liftgate in the fully open position. Verify that the "Full Open, Primary, Secondary and Paw" readings are all "Closed" and the "Sector" reading is "Open". Repair as necessary |
| - | - | Using a scan tool, observe the liftgate latch "Full Open, Primary, Secondary, Sector and Paw" switch readings with the liftgate in the fully closed position. Verify that the "Full Open, Primary, Secondary, Sector and Paw" readings are all "Open". Repair as necessary |
| - | Full open switch | Using a scan tool, verify proper operation of the full open switch during a power liftgate cycle. Switch reading should be "closed" with the liftgate a few degrees below fully opened and "open" in all other positions. Repair as necessary |
| - | - | Using a scan tool, verify proper operation of the full open switch during a manual liftgate cycle. Switch reading should be "closed" with the liftgate a few degrees below fully opened and "open" in all other positions. Repair as necessary |
| $95 LATCH RELEASE INHIBIT - LOCK ENGAGED | Vehicle was locked when the operator attempted to release the liftgate latch using the exterior handle switch | Inform customer of proper power liftgate/latch operation |
| - | Invalid lock status received by the power liftgate control module | Using a scan tool observe the Bussed inputs to the power liftgate control module. Cycle the power door locks using the key fob, auto locks and interior lock switches. Verify the "Lock" status reads correctly, repair as necessary. |
| $96 LATCH CINCH ABORTED - LEFT PINCH SENSOR ACTIVE | Pinch was activated when liftgate latch was cinching | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on left pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative left pinch sensor | Measure the resistance of the left pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the left pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the left pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $97 LATCH CINCH ABORTED - RIGHT PINCH SENSOR ACTIVE | Pinch was activated when liftgate latch was cinching | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on left pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative right pinch sensor | Measure the resistance of the right pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the right pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the right pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $98 OPEN CANCELLED - HANDLE ACTIVE | Operator induced by grabbing the exterior handle switch while a "power open" cycle was taking place | Inform customer of operating restrictions |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is approximately 2.4V with handle activated and greater than 4.6V when released. |
| - | - | Using a digital multi-meter, measure the resistance of the exterior handle switch. The multi-meter should read approximately 4.7K ohms activated and "open" with handle released. Repair as necessary |
| $99 OPEN CANCELLED - RKE ACTIVE | A "power open" cycle was cancelled during the first two seconds (while chiming) by an RKE signal | Inform customer of operating restrictions. Key fob buttons may get inadvertently pressed when in a pocket or purse. Rapid pressing of the buttons may also be the cause |
| - | WIN | Using a scan tool, verify the key fob button status readings from the WIN are correct |
| - | - | Verify key fob is operating properly and buttons are not sticking. Repair as necessary |
| $9A OPEN CANCELLED - OVERHEAD/IP ACTIVE | A "power open" cycle was cancelled during the first two seconds (while chiming) by an overhead console liftgate switch signal | Inform customer of operating restrictions. The overhead console liftgate switch may have been double pressed |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| $9B CLOSE CANCELLED - HANDLE ACTIVE | Operator induced by grabbing the exterior handle switch while a "power close" cycle was taking place | Inform customer of operating restrictions |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is approximately 2.4V with handle activated and greater than 4.6V when released. |
| - | - | Using a digital multi-meter, measure the resistance of the exterior handle switch. The multi-meter should read approximately 4.7K ohms activated and "open" with handle released. Repair as necessary |
| $9C CLOSED CANCELLED - RKE ACTIVE | A "power close" cycle was cancelled during the first two seconds (while chiming) by an RKE signal | Inform customer of operating restrictions. Key fob buttons may get inadvertently pressed when in a pocket or purse. Rapid pressing of the buttons may also be the cause |
| - | WIN | Using a scan tool, verify the key fob button status readings from the WIN are correct |
| - | - | Verify key fob is operating properly and buttons are not sticking. Repair as necessary |
| $9D CLOSE CANCELLED - OVERHEAD/IP ACTIVE | A "power close" cycle was cancelled during the first two seconds (while chiming) by an overhead console liftgate switch signal | Inform customer of operating restrictions. The overhead console liftgate switch may have been double pressed |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| $9E CLOSE CANCELLED - LEFT PINCH SENSOR DETECTED | A "power close" cycle was cancelled during the first two seconds (while chiming) by a left pinch sensor signal | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on left pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative left pinch sensor | Measure the resistance of the left pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the left pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the left pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $9F CLOSE CANCELLED - RIGHT PINCH SENSOR DETECTED | A "power close" cycle was cancelled during the first two seconds (while chiming) by a right pinch sensor signal | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on right pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative right pinch sensor | Measure the resistance of the right pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the right pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the right pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $A0 OPEN REVERSAL - GEAR OR SPEED STATE CHANGE | Operator shifted vehicle out of Park/Neutral while a "power open" cycle was in progress | Inform customer of operating restrictions |
| - | Vehicle speed sensor | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify vehicle speed reads correctly. If NOT OK, verify proper operation of the vehicle speed sensor, repair as necessary. |
| - | Transmission range sensor problem | Using a scan tool observe the Bussed inputs to the power liftgate control module. Verify PRNDL status reads correctly. If NOT OK, verify proper operation of the transmission range sensor, repair as necessary. |
| $A1 OPEN REVERSAL - USER INPUT | Operator activated either a key fob button or overhead console liftgate switch while a "power open or close" cycle was in progress | Inform customer of operating restrictions. The overhead console liftgate switch may have been double pressed or the key fob buttons may get inadvertently pressed when in a pocket or purse. Rapid pressing of the buttons may also be the cause |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Using a scan tool, verify the key fob button status readings from the WIN are correct |
| - | - | Verify key fob is operating properly and buttons are not sticking. Repair as necessary |
| $A2 CLOSE REVERSAL - USER INPUT | Operator activated either a key fob button or overhead console liftgate switch while a "power open or close" cycle was in progress | Inform customer of operating restrictions. The overhead console liftgate switch may have been double pressed or the key fob buttons may get inadvertently pressed when in a pocket or purse. Rapid pressing of the buttons may also be the cause |
| - | Overhead console liftgate switch | Using a scan tool, observe overhead console liftgate switch reading. Verify the reading is correct under different voltage and driving conditions. Repair as necessary |
| - | WIN | Using a scan tool, verify the key fob button status readings from the WIN are correct |
| - | - | Verify key fob is operating properly and buttons are not sticking. Repair as necessary |
| $A3 CLOSE REVERSAL - LEFT PINCH SENSOR DETECTED | A "power close" cycle reversed direction due to a left pinch sensor signal | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on left pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative left pinch sensor | Measure the resistance of the left pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the left pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the left pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $A4 CLOSE REVERSAL - RIGHT PINCH SENSOR DETECTED | A "power close" cycle reversed direction due to a right pinch sensor signal | Inform customer of pinch sensor operation |
| - | - | Check for obstructions causing pinch sensor activation. Repair as necessary |
| - | - | Check the pinch strip for areas that may be coming in contact with other parts of the vehicle |
| - | - | Ensure the pinch strip is properly secured to the liftgate |
| - | Short to ground on right pinch sensor signal circuit | Check signal circuit and repair as necessary |
| - | Inoperative right pinch sensor | Measure the resistance of the right pinch sensor in an unpinched state. If the resistance is less than 9k ohms, replace the right pinch sensor |
| - | Power liftgate control module | Use a scan tool to observe the voltage of the right pinch sensor with the sensor unplugged. The reading should be approximately 5V. Short the pinch sensor circuit to ground and recheck the scan tool reading. The reading should be approximately 0V. If the readings are NOT OK, replace the inoperative power liftgate control module |
| $A5 CLOSE REVERSAL - HANDLE ACTIVE | A "power close" cycle reversed direction due to the operator grabbing the exterior handle switch while a "power close" cycle was taking place | Inform customer of operating restrictions |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is approximately 2.4V with handle activated and greater than 4.6V when released. |
| - | - | Using a digital multi-meter, measure the resistance of the exterior handle switch. The multi-meter should read approximately 4.7K ohms activated and "open" with handle released. Repair as necessary |
| $A6 OPEN ABORTED - HANDLE ACTIVE | Operator induced by grabbing the exterior handle switch while a "power open" cycle was taking place | Inform customer of operating restrictions |
| - | Exterior handle switch | Using a scan tool, observe inputs to the power liftgate control module. Verify the exterior handle switch reading is approximately 2.4V with handle activated and greater than 4.6V when released. |
| - | - | Using a digital multi-meter, measure the resistance of the exterior handle switch. The multi-meter should read approximately 4.7K ohms activated and "open" with handle released. Repair as necessary |
| $A7 OPEN OBSTACLE | An obstacle was detected while a "power open" cycle was taking place | Normal operation, inform customer of operating restrictions |
| - | Binding or sticking of components | Using a scan tool, move liftgate manually to the "Gate Position" indicated in the Inhibit Monitor record. Establish location of obstruction/binding and replace necessary components |
| - | The power liftgate control module is not properly calibrated | Using a scan tool, perform the power liftgate control module learn cycle. See Standard Procedure . If learn cycle does not correct the problem replace the power liftgate control module |
| $A8 CLOSE OBSTACLE | An obstacle was detected while a "power close" cycle was taking place | Normal operation, inform customer of operating restrictions |
| - | Binding or sticking of components | Using a scan tool, move liftgate manually to the "Gate Position" indicated in the Inhibit Monitor record. Establish location of obstruction/binding and replace necessary components |
| - | The power liftgate control module is not properly calibrated | Using a scan tool, perform the power liftgate control module learn cycle. See Standard Procedure . If learn cycle does not correct the problem replace the power liftgate control module |
| $A9 WRONG SOFTWARE VERSION | Current power liftgate control module software version does not match bootloader and possibly hardware version | If an updated software version is available, reflash the power liftgate control module. If updated software is not available, replace the power liftgate control module |
| $AA LATCH IS NOT NEAR SECONDARY STATE | Operator induced by placing the liftgate in the primary or secondary latch position when the liftgate was open | Inform customer of proper power liftgate/latch operation |
| - | Wiring problem | Using a scan tool, verify that the position sensor 1 and 2 toggle between "Open" and "Closed". If readings are inaccurate, diagnose the wiring for possible opens, or shorts to ground/voltage. Repair as necessary |
| - | Power liftgate drive unit position sensor | Manually open the liftgate to the fully open position. Bring the liftgate down to just before the latch contacts the striker. Using a scan tool, observe the "gate position counts". If the count is greater than 20, replace the inoperative power liftgate drive unit |
| - | Power liftgate control module | Using a scan tool, observe the position sensor 1 and 2 status. Disconnect the power liftgate drive unit electrical connector. Apply opens and grounds to the position sensor signal circuits. Verify the power liftgate control module reads the correct "Open/Closed" status. If readings are NOT OK, replace the power liftgate control module |
| $AB OPEN INHIBIT - VTA ARMED | The overhead console liftgate switch would not initiate a "power open" cycle because the Vehicle Theft Alarm (VTA) was armed | Normal operation, inform customer of operating restrictions |
| - | Invalid VTA status | Verify proper operation of the VTA system and instrument cluster or Cab Compartment Node (CCN) bussed outputs using a scan tool and the appropriate diagnostic information. Repair as necessary |