Pinpoint Test E: The Start/Stop Switch Illumination Is Inoperative Or Always On

• Ignition ON.
• Turn the parking lamps on.
• While pressing the dimmer switch up and down, monitor the start/stop switch illumination and the steering wheel switch illumination.
• Turn the parking lamps off.
• Ignition OFF.

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

• Yes  : Go to PINPOINT TEST B 
• No  : If the start/stop switch illumination is inoperative, Go to E2 

  If the start/stop switch illumination is always on, Go to  E6

• Ignition OFF.
• Disconnect Start/Stop Switch C2195  .
• Using the Terminal Release Kit 418-D631, release and temporarily remove the start/stop switch illumination circuit C2195-1  .
• Connect Start/Stop Switch C2195  .
• Ignition ON.
• Turn the parking lamps on.
• Press the dimmer switch up until the instrument panel illumination reaches full brightness.
• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  Positive Battery Terminal		Loose Pin

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 E3 

• 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 E4 
• No  : Go to  E5

• 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 illumination 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  E7

• 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  E7
• No  : INSTALL pin 1 into the start/stop switch connector. REPAIR the circuit.

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

  Positive Lead	Measurement/Action	Negative Lead
  C2195-1		Ground

Is the resistance greater than 10, 000 ohms? 

• Yes  : Go to E7 
• 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 and the start/stop switch connector. Make sure all connectors 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 TSB  addresses 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.