Pinpoint Test B: The Power Seat Is Inoperative - Passenger
WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
- B1 CHECK FOR VOLTAGE TO THE SEAT CONTROL SWITCH
- Ignition OFF.
- Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag C337.
- Disconnect: Passenger Seat Control Switch C3190.
-
WARNING: Make sure no one is in the vehicle and there is nothing blocking or placed in front of any airbag when the battery is connected. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
Connect the battery ground cable. Refer to BATTERY, MOUNTING AND CABLES .
- Measure the voltage between passenger seat control switch C3190-4, circuit SBB31 (WH/RD), harness side and ground.
- Is the voltage greater than 10 volts?
- Yes : GO to B2.
- No
: VERIFY Battery Junction Box (BJB) fuse 31 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS
to identify the possible causes of the circuit short. TEST the system for normal operation.
DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- B2 CHECK THE SEAT CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN
- Measure the resistance between passenger seat control switch C3190-2, circuit GD139 (BK/YE), harness side and ground.
- Is the resistance less than 5 ohms?
- Yes
: INSTALL a new seat control switch. REFER to SEAT CONTROL SWITCH . TEST the system for normal operation.
DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- No
: REPAIR the circuit. TEST the system for normal operation.
DISCONNECT the battery ground cable. CONNECT passenger seat side air bag module C337. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .