Pinpoint Test U : The Remote Start Feature Is Inoperative
- U1 CHECK THE REMOTE START FEATURE ENABLE/DISABLE SETTING
- Ignition ON.
- Using the steering wheel control switch, check the remote start feature setting in the message center.
Is the remote start feature enabled?
Yes GO to U2 No ENABLE the remote start feature. - U2 CHECK THE PARK DETECT SWITCH INPUT
- Ignition ON.
- Verify the PRNDL displays correctly in the IPC. When the vehicle is in PARK, the P should be highlighted or displayed prominently.
Does the PRNDL display correctly?
Yes GO to U3 No DIAGNOSE the PRNDL. Refer to: Instrumentation, Message Center and Warning Chimes . - U3 CHECK FOR POWERTRAIN DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.
Are any PCM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to PCM DTC Chart . No GO to U4 - U4 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, carry out the BCM self-test.
Are any BCM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to BCM DTC Chart . No GO to U5 - U5 CHECK THE RKE (REMOTE KEYLESS ENTRY) FUNCTIONALITY
- Ignition OFF.
- Using the RKE function of the passive key, press the tailgate release button twice, the lock button and then the unlock button.
Do all the functions tested of the RKE transmitter operate (lock, unlock and tailgate latch release)?
Yes GO to U6 No If all of the functions are inoperative, GO to Pinpoint Test R If an individual function is inoperative, GO to Pinpoint Test S - U6 CHECK THE WAKE-UP CIRCUIT FOR VOLTAGE AT THE PCM (POWERTRAIN CONTROL MODULE) USING THE BCM (BODY CONTROL MODULE) PID (PARAMETER IDENTIFICATION) (PCM) WAKE-UP OUTPUT CONTROL (PCM_WKUP_CTRL)
- Disconnect: PCM B connector.
- Ignition ON.
- Using a diagnostic scan tool, command the BCM PID PCM_WKUP_CTRL on.
- Measure:
2.7L GTDI
Positive Lead Measurement / Action Negative Lead C1232B-28 (vehicles equipped with pin 28) Ground C1232B-7 (vehicles equipped with pin 7) Ground 3.0L
Positive Lead Measurement / Action Negative Lead C1233B-35 Ground 3.3L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1551B-7 Ground 3.5L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1551B-65 Ground 3.5L GTDI (Vehicles Equipped With C175B)
Positive Lead Measurement / Action Negative Lead C175B-28 Ground 3.5L GTDI (Vehicles Equipped With C1915B)
Positive Lead Measurement / Action Negative Lead C1915B-85 Ground 5.0L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1381B-65 (vehicles equipped with circuit CE436 on pin 65) Ground C1381B-7 (vehicles equipped with circuit CE436 on pin 7) Ground
Is the voltage greater than 11 volts?
Yes GO to U8 No GO to U7 - U7 CHECK THE WAKE-UP CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: BCM C2280D .
- Disconnect: BCM C2280F .
- Measure:
2.7L GTDI
Positive Lead Measurement / Action Negative Lead C1232B-28 (vehicles equipped with pin 28) C2280F-18 C1232B-7 (vehicles equipped with pin 7) C2280F-18 3.0L
Positive Lead Measurement / Action Negative Lead C1233B-35 C2280F-18 3.3L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1551B-7 C2280F-18 3.5L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1551B-65 C2280F-18 3.5L GTDI (Vehicles Equipped With C175B)
Positive Lead Measurement / Action Negative Lead C175B-28 C2280F-18 3.5L GTDI (Vehicles Equipped With C1915B)
Positive Lead Measurement / Action Negative Lead C1915B-85 C2280F-18 5.0L Ti-VCT
Positive Lead Measurement / Action Negative Lead C1381B-65 (vehicles equipped with circuit CE436 on pin 65) C2280F-18 C1381B-7 (vehicles equipped with circuit CE436 on pin 7) C2280F-18
Is the resistance less than 3 ohms?
Yes GO to U9 No REPAIR the circuit. - U8 VERIFY THE REMOTE START FUNCTION IS INOPERATIVE
- Ignition OFF.
- Connect PCM B connector.
- Close all the doors, the hood and the liftgate.
-
NOTE: Each button press must be done within three seconds of each other.
Using the key:
- Press the door lock button.
- Press the remote start button twice.
Does the vehicle remotely start?
Yes The system is operating correctly. INFORM the customer of the correct vehicle remote start operation. No REPLACE the passive key in question. PROGRAM the new passive key. Refer to: Anti-Theft Key Programming - Scan Tool . - U9 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Disconnect and inspect all the BCM connectors.
- Repair:
- corrosion (install new connectors 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 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 TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to BCM Hardware Testing 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.