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 A-phase pulse signal in the DATA LIST.
Does the information indicator display DETECT while the power window is moving, and display NONE when the power window is stopped?
YES -
Replace the front passenger's MPCS unit.?
NO -
Go to step 8.
8. Check for DTCs with the HDS.
Is DTC B2178 also indicated?
YES -
Go to step 15.
NO -
Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Disconnect front passenger's MPCS unit connector B (14P).
11. Disconnect the 6P connector from the passenger's power window motor.
12. Check for continuity between front passenger's MPCS unit connector B (14P) terminal No. 5 and front passenger's power window motor 6P
connector terminal No. 3.
