Repair an open in the wire.?
16. Check for continuity between front passenger's power window motor 6P connector terminal No. 6 and body ground.
Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Replace the front passenger's power window motor.?
B2178
DTC Troubleshooting: B2178
DTC B2178:
Front Passenger's Power Window Motor Pulse B Error
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Open and close the front passenger's power window by using the front passenger's power window switch manually.
4. Check for DTCs with the HDS.
Is DTC B2178 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
5. Open and close the front passenger's power window by using the power window master switch manually.
Does the power window motor operate?
YES -
Go to step 6.
NO -
Do the front passenger's power window motor test See: Windows and Glass/Windows/Power Window Motor/Testing and Inspection/Front
Passenger's Power Window Motor Test.?
6. Select the POWER WINDOWS from the BODY ELECTRICAL SYSTEM SELECT menu and enter the DATA LIST.
7. Check the DETECT/NONE information of the Front passenger's window motor B-phase pulse signal in the DATA LIST.
