Pinpoint Test F: The Start-Stop Switch Illumination Is Inoperative Or Always On-Vehicles With Intelligent Access (IA)

• Monitor the start/stop switch illumination and the steering wheel switch illumination.
• Ignition ON.
• Press the dimmer switch up and down to change the level of the instrument panel illumination
• Ignition OFF.

Is the steering wheel switch and the start/stop switch illumination inoperative or always on? 

• Yes  : If the illumination is inoperative, GO to PINPOINT TEST A 

  If the illumination is always on, GO to PINPOINT TEST B 

• No  : If the start/stop switch illumination is inoperative, GO to F2 

  If the start/stop switch illumination is always on, GO to  F6

• Ignition OFF.
• Disconnect: Start/Stop Switch C2195.
• Using the Terminal Release Kit, release and temporarily remove the start/stop switch connector pin 1, circuit CLN17 (BN).
• Connect: Start/Stop Switch C2195.
• Ignition ON.
• Press the dimmer switch up until the instrument panel illumination reaches full brightness.
• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  CBATTERY POSITIVE		C2195-1

Is the voltage greater than 11 volts? 

• Yes  : INSTALL pin 1 into the start/stop switch connector. INSTALL a new start/stop switch.

  REFER to: IGNITION SWITCH - VEHICLES WITH: PUSH BUTTON START .

• No  : GO to F3 

• Using a diagnostic scan tool, clear the BCM  Diagnostic Trouble Codes (DTCs).
• Wait 10 seconds.
• Perform the BCM  self-test.

Is DTC B1249:12 present? 

• Yes  : GO to F4 
• No  : GO to  F5

• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  C2195-1		Ground

Is any voltage present? 

• Yes  : INSTALL pin 1 into the start/stop switch connector. REPAIR the circuit.

  After the repair: 

  If DTC  U1000:00 is present in the BCM  , CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the output driver when DTC  U1000:00 is stored in the BCM  ).

  If DTC  U3000:49 is present in the BCM  , INSTALL a new BCM  after all other Diagnostic Trouble Codes (DTCs) have been addressed.

  REFER to: BODY CONTROL MODULE (BCM) .

• No  : GO to  F7

• Ignition OFF.
• Disconnect: Start/Stop Switch C2195.
• Disconnect: BCM C2280C  .
• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  C2195-1		C2280C-12

Is the resistance less than 3 ohms? 

• Yes  : INSTALL pin 1 into the start/stop switch connector. GO to  F7
• No  : INSTALL pin 1 into the start/stop switch connector. REPAIR the circuit.

• Ignition OFF.
• Disconnect: Start/Stop Switch C2195.
• Disconnect: BCM C2280C  .
• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  C2195-1		Ground

Is the resistance greater than 10, 000 ohms? 

• Yes  : GO to F7 
• No  : REPAIR the circuit.

• 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
  • pushed-out pins - install new pins as necessary
• Reconnect the BCM  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 the TSB  instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM  .

  REFER to: BODY CONTROL MODULE (BCM) .

• 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.