Pinpoint Test A : All Power Windows Are Inoperative From The Master Window Control Switch
- A1 CHECK FOR VOLTAGE TO THE MASTER WINDOW CONTROL SWITCH
- Ignition OFF.
- Disconnect: Master Window Control Switch C504.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C504-10 Ground
Is the voltage greater than 11 volts?
Yes INSTALL a new master window control switch. REFER to: Driver Door Window Control Switch . No VERIFY BCM fuse 23 (10A) is OK. If not OK, REFER to OEM Electrical Wiring Diagram Introduction to identify the possible causes of the circuit short. If OK, GO to A2 - A2 CHECK THE MASTER WINDOW CONTROL SWITCH VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: BCM C2280C.
Is the resistance less than 3 ohms?
Yes GO to A3 No REPAIR the circuit. - A3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all the BCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins as necessary
- pushed-out pins - install new pins as necessary
- Reconnect the BCM connectors and all previously disconnected system connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern. No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.