PINPOINT TEST F : One Or More Interior Courtesy Lamps Are Inoperative
- F1 CHECK THE OPERATION OF ALL THE INTERIOR COURTESY LAMPS
- Press and hold the courtesy lamp switch for 3 seconds.
Are all the interior courtesy lamps inoperative?
Yes VERIFY the BCM fuse 12 (15A) is OK. If OK, GO to F4. No GO to F2. - F2 CHECK FOR VOLTAGE TO THE COURTESY LAMP
- Press and hold the courtesy lamp switch to turn the interior courtesy lamps off.
- Disconnect: Inoperative Interior Lamp.
- Press and hold the courtesy lamp switch for 3 seconds.
- For a front interior lamp (overhead console), measure:
Positive Lead Measurement / Action Negative Lead C930-2 Ground
- For a rear interior lamp (with roof opening panel), measure:
Positive Lead Measurement / Action Negative Lead Inoperative Left Rear Lamp C941-1 Ground Inoperative Right Rear Lamp C942-1 Ground
- For a rear interior lamp (without roof opening panel) or cargo lamp, measure:
Positive Lead Measurement / Action Negative Lead Inoperative Cargo Lamp C927-4 Ground Inoperative Rear Lamp C901-4 Ground
Is the voltage greater than 11 volts?
Yes GO to F3. No REPAIR the courtesy lamp voltage supply circuit for an open. - F3 CHECK THE COURTESY LAMP GROUND CIRCUIT FOR AN OPEN
- For a front interior lamp (overhead console), measure:
Positive Lead Measurement / Action Negative Lead C930-2 C930-1
- For a rear interior lamp (with roof opening panel), measure:
Positive Lead Measurement / Action Negative Lead Inoperative Left Rear Lamp C941-1 Inoperative Left Rear Lamp C941-2 Inoperative Right Rear Lamp C942-1 Inoperative Right Rear Lamp C942-2
- For a rear interior lamp (without roof opening panel) or cargo lamp, measure:
Positive Lead Measurement / Action Negative Lead Inoperative Cargo Lamp C927-4 Inoperative Cargo Lamp C927-5 Inoperative Rear Lamp C901-4 Inoperative Rear Lamp C901-5
Is the voltage greater than 11 volts?
Yes INSTALL a new interior lamp for the lamp in question. Refer to Interior Lamp - First Row , Refer to Interior Lamp - Second Row With Moon Roof or Refer to Interior Lamp - Second Row Without Moon Roof, Third Row . No REPAIR the circuit. - For a front interior lamp (overhead console), measure:
- F4 CHECK THE OPERATION OF THE DEMAND LAMPS
- Activate the map lamp function from all of the interior lamps.
Do the map lamps illuminate?
Yes GO to F5. No REPAIR the interior lamp ground circuit for an open. - F5 BYPASS THE BCM
- Turn the map lamps off.
- Disconnect: BCM C2280A.
- Connect:
Positive Lead Measurement / Action Negative Lead C2280A-1 Positive Battery Terminal
Do the courtesy lamps illuminate?
Yes REMOVE the jumper wire. GO to F6. No REMOVE the jumper wire. REPAIR the courtesy lamp voltage supply circuit for an open. - F6 CHECK FOR CORRECT BCM OPERATION
- Disconnect the BCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- corrosion (install new connector or terminals - clean module pins)
- pushed-out pins - install new pins as necessary
- Reconnect the BCM connectors and 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 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 Multifunction Electronic Modules - Without Intelligent Access or REFER to Multifunction Electronic Modules - With Intelligent Access . 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. CLEAR the DTCs.
NOTE:
If the jumper wire fails, refer to the OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION
to identify the possible causes of the circuit short.
