DTC B2038: Left Power Sliding Door Base Position Switch Circuit Open/Short

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Clear the DTCs with the HDS.
Turn the ignition switch to LOCK (0), and then back to ON (II).
Turn the power sliding door main switch ON.
Open and close the left power sliding door three times with the power sliding door switch.
Check for DTCs with the HDS.
Is DTC B2038 indicated?

YES -Go to step 6.

NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections between the left power sliding door control unit and the left power sliding door rear latch.
Turn the ignition switch to LOCK (0).
Disconnect left power sliding door rear latch connector B (6P).
At the motor side, check for continuity between left power sliding door rear latch connector B (6P) terminals No. 4 and No. 5.

Fig 1: Checking Continuity Between Left Power Sliding Door Rear Latch Connector B (6P) Terminals No. 4 And No. 5
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Faulty base position switch; replace the left power sliding door rear latch (see SLIDING DOOR REAR LATCH REPLACEMENT ).

NO -Go to step 9.
Disconnect left power sliding door control unit connector A (12P).
Check for continuity between left power sliding door control unit connector A (12P) terminal No. 11 and body ground.

Fig 2: Checking Continuity Between Left Power Sliding Door Control Unit Connector A (12P) Terminal No. 11 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to ground in the wire.

NO -Go to step 11.
Check for continuity between left power sliding door control unit connector A (12P) terminal No. 11 and left power sliding door rear latch connector B (6P) terminal No. 4.

Fig 3: Checking Continuity Between Left Power Sliding Door Control Unit Connector A (12P) Terminal No. 11 And Left Power Sliding Door Rear Latch Connector B (6P) Terminal No. 4
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 12.

NO -Repair an open or high resistance in the wire.
Reconnect all connectors to the left power sliding door control unit.
Turn the ignition switch to ON (II).
Measure the voltage between left power sliding door control unit connector B (16P) terminal No. 5 and connector A (12P) terminal No. 11.

Fig 4: Measuring Voltage Between Left Power Sliding Door Control Unit Connector B (16P) Terminal No. 5 And Connector A (12P) Terminal No. 11
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Faulty base position switch; replace the left power sliding door rear latch (see SLIDING DOOR REAR LATCH REPLACEMENT ).

NO -Replace the left power sliding door control unit (see POWER SLIDING DOOR MOTOR UNIT REPLACEMENT ).