Pinpoint Test K : DTC U3003:62
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE:
Failure to disconnect the battery when instructed results in false resistance readings. Refer to
Battery, Mounting and Cables
.
NOTE:
DTC U3003:62 may be stored in the module memory due to previous battery charging or vehicle jump starting events.
- K1 RECHECK THE RFA MODULE DTCs
- Ignition OFF.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: RFA Module Self-Test.
- Clear the DTCs. Repeat the RFA module self-test.
Is DTC U3003:62 still present?
Yes GO to K2. No The system is operating normally at this time. The DTC may have been set due to a previous low battery voltage condition, during battery charging or while jump starting the vehicle. - K2 CHECK FOR CHARGING SYSTEM DTCs IN THE PCM
- Enter the following diagnostic mode on the scan tool: PCM Self-Test.
- Carry out the PCM KOEO self-test.
- Retrieve the continuous memory DTCs from the PCM.
Is DTC P0562, P0620, P0622, P0625, P0626 or P065B set in the PCM?
Yes REFER to Charging System . No GO to K3. - K3 CHECK FOR DTCs B1317, B1318 B1676, P0563, U3003:16 OR U3003:17 SET IN OTHER MODULES
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
Is DTC B1317, B1318, B1676, P0563 (PCM), U3003:16 or U3003:17 set in any other module?
Yes REFER to Charging System to diagnose the charging system condition. No GO to K4. - K4 CHECK THE BATTERY VOLTAGE
- Turn off all interior/exterior lights and accessories.
- Start and run the engine at approximately 2, 000 rpm for 3 minutes while monitoring the battery voltage.
Does the battery voltage rise to 15 volts or higher?
Yes REFER to Charging System to diagnose an overcharging condition. No GO to K5. - K5 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
- Ignition OFF.
- Check the battery condition and verify the battery is fully charged. Refer to Battery, Mounting and Cables .
Is the battery OK and fully charged?
Yes GO to K6. No REFER to Charging System . - K6 CHECK THE RFA MODULE VOLTAGE PID
- Ignition ON.
- Measure and record the voltage at the battery.
- Enter the following diagnostic mode on the scan tool: RFA Module DataLogger.
- Monitor the RFA module voltage PID (ECU_Pwr_Sup).
Is the voltage within 0.2 volt of the recorded battery voltage?
Yes GO to K9. No GO to K7. - K7 CHECK THE RFA MODULE VOLTAGE SUPPLY
- Ignition OFF.
- Disconnect: RFA Module C2153C .
- Ignition ON.
- Measure the voltage between the RFA module C2153C-1 , circuit SBP23 (WH/RD), harness side and ground; and between the RFA module C2153C-5 , circuit SBP27 (BU/RD), harness side and ground.
Is the voltage within 0.2 volt of the recorded battery voltage?
Yes GO to K8. No REPAIR circuit SBP23 (WH/RD) or circuit SBP27 (BU/RD) for high resistance as necessary. CLEAR the DTC. REPEAT the self-test. - K8 CHECK THE RFA MODULE GROUND CIRCUIT FOR HIGH RESISTANCE
- Ignition OFF.
- Disconnect: Negative Battery Cable.
- Measure the resistance between the RFA module C2153C-3 , circuit GD115 (BK/GY), harness side and ground.
Is the resistance less than 5 ohms?
Yes GO to K9. No REPAIR circuit GD115 (BK/GY) for high resistance. CLEAR the DTC. REPEAT the self-test. - K9 CHECK FOR CORRECT RFA MODULE OPERATION
- Disconnect the RFA module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the RFA module connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes INSTALL a new RFA module. REFER to Remote Function Actuator (RFA) Module . TEST the system for normal operation. No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.