7. Some Windows Work With The Master Switch Only

CIRCUIT OPERATION
Power is supplied to the power window sub switch from the power window relay.

TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the power window sub switch power supply circuit.

TROUBLESHOOTING HINTS
- Malfunction of the front power window sub switch [RH]
- Malfunction of the rear power window sub switch [LH]
- Malfunction of the rear power window sub switch [RH]
- Damaged harness wires or connectors

DIAGNOSIS
Required Special Tool:
MB991223: Harness Set

STEP 1. Check the power window sub switch continuity.
1. Remove the power window sub switch.







2. Check the continuity when the power window sub switch is turned to the UP position or DOWN position.
If the power window sub switch is damaged, replace it. Then go to Step 3.
If the power window sub switch is not damaged, go to Step 2.







STEP 2. Check the harness wire between rear power window sub switch [RH] connector E-05 [Front: LH], E-09 [Rear: RH] or E-12 [Rear: LH] and intermediate connector C-66.
If any harness wire between rear power window sub switch connector E-05 [Front: LH], E-09 [Rear: RH] or E-12 [Rear: LH] and intermediate connector C-66 is damaged, repair it. Then go to Step 6.












NOTE: After inspecting intermediate connector C-67 C-70, C-72, D-07 or D-10 inspect the wire. If intermediate connector C-67, C-70, C-72, D-07 or D-19 is damaged, repair or replace it. Refer to Harness Connector Inspection.
Then go to Step 3.

STEP 3. Check symptoms
Confirm that all door windows can be opened or closed by the power window sub switch on the passenger doors.