Pinpoint Test

1. Ignition ON.
2. Using a scan tool, perform BCM self-test.

Is DTC B1310:14 present? 

1. Yes:  GO to  4.
2. No  : For BCM DTCs  , REFER to DTC CHART: BODY CONTROL MODULE (BCM) .

   If no DTCs  are present, GO to 2  .

1. Ignition OFF.
2. Disconnect: BCM C2280B.
3. Ignition ON.
4. Measure:

   BCM			Ground
   C2280B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   29	CDC34 (WH/OG)		-	Ground

Is the voltage greater than 11 volts? 

1. Yes:  GO to  4.
2. No  : GO to 3  .

1. Ignition OFF.
2. Disconnect: Ignition Switch.
3. Measure:

   BCM			Ignition Switch
   C2280B			C250
   Pin	Circuit	Measurement / Action	Pin	Circuit
   29	CDC34 (WH/OG)		1	CDC34 (WH/OG)

Is the resistance less than 3 ohms? 

1. Yes:  INSTALL a new ignition switch. REFER to Ignition Switch .
2. No  : REPAIR the circuit.

1. Ignition OFF.
2. Remove the RUN/START relay.
3. Carry out the appropriate relay component test.

   Refer to OEM Wiring Diagrams - COMPONENT TESTING for schematic and connector information.

Is the relay OK? 

1. Yes:  GO to 5  .
2. No  : INSTALL a new RUN/START relay.

1. Measure:

   BJB			Ground
   RUN/START relay			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   2	SBB87 (WH/RD)		-	Ground

Is the voltage greater than 11 volts? 

1. Yes:  GO to 6  .
2. No  : VERIFY BJB fuse 87 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .

1. Ignition OFF.
2. Disconnect: BCM C2280F.
3. Measure:

   BJB			BCM
   RUN/START relay			C2280F
   Pin	Circuit	Measurement / Action	Pin	Circuit
   1	CDC55 (BN/VT)		18	CDC55 (BN/VT)

Is the resistance less than 3 ohms? 

1. Yes:  GO to 7  .
2. No  : REPAIR the circuit.

1. Measure:

   BCM			Ground
   C2280F			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   18	CDC55 (BN/VT)		-	Ground

Is the resistance greater than 10, 000 ohms? 

1. Yes:  GO to 8  .
2. No  : REPAIR the circuit.

1. Disconnect and inspect all BCM connectors.
2. Repair:
   • corrosion (install new connector or terminal - clean module pins)
   • damaged or bent pins - install new terminals/pins
   • pushed-out pins - install new pins as necessary
3. Reconnect the BCM connectors and all previously disconnected exterior system connectors. Make sure they seat and latch correctly.
4. Operate the system and determine if the concern is still present.

Is the concern still present? 

1. Yes:  CHECK OASIS  for any applicable TSBs  . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs  address this concern, INSTALL a new BCM. REFER to BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA) , or REFER to BODY CONTROL MODULE (BCM) - WITH INTELLIGENT ACCESS (IA) .
2. 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.