Pinpoint Test E: The Remote Start Is Inoperative
Starting System
Pinpoint Tests
Pinpoint test E: The Remote Start Is Inoperative
Normal Operation
The factory equipped remote start system enables the engine to be started from up to 100 meters (328 feet) away by pressing the Integrated Keyhead Transmitter (IKT) lock button followed by 2 presses of the remote start button. The 3 button presses must occur within 3 seconds. The IKT signal is received through an external antenna attached to the Tire Pressure Monitor Module (TPM) module and communicated over the Medium Speed Controller Area Network (MS-CAN) to initiate the vehicle start.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Remote start feature disabled
- IKT
- Hood switch
- PCM
PINPOINT TEST E: THE REMOTE START IS INOPERATIVE
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E1 CHECK THE OPERATION OF THE IKT
- Press all buttons on the IKT and check for the correct operation.
- Is the remote start the only function that is inoperative?
Yes
GO to E2.
No
REFER to Handles, Locks, Latches and Entry Systems Testing and Inspection to DIAGNOSE and REPAIR the Remote Keyless Entry (RKE) system.
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E2 CHECK THE VEHICLE STARTING
- Attempt to start the vehicle.
- Did the vehicle start?
Yes
GO to E3.
No
This is not a remote start issue. GO to Symptom Chart to diagnose the no crank condition. Symptom Related Diagnostic Procedures
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E3 CHECK FOR ILLUMINATED ENGINE WARNING LAMPS
- With the engine running check the instrument cluster for illuminated warning lamps.
- Are any engine warning lamps illuminated?
Yes
CARRY OUT a self test of the PCM. DIAGNOSE and REPAIR any present DTCs. REFER to Electronic Engine Controls Testing and Inspection or Computers and Control Systems Information.
No
GO to E4.
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E4 RETRIEVE BCM AND TPM DTCs
- Enter the following diagnostic mode on the scan tool: BCM - Self-Test.
- Enter the following diagnostic mode on the scan tool: TPM - Self-Test.
- Are any DTCs present?
Yes
For BCM DTCs C113A:11 or C113A:15, GO to Pinpoint Test C. Pinpoint Test C: DTC C113A:11 or C113A:15
For BCM DTC B1305:01, REFER to Anti-Theft - Perimeter Testing and Inspection.
For TPM DTCs U0140:87 or U0422:68, REFER to Wheels and Tires Testing and Inspection.
For all other DTCs, REFER to Multifunction Electronic Modules Multifunction Electronic Modules.
No
GO to E5.
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E5 CONFIRM THE REMOTE START FUNCTION IS ENABLED
- Ignition ON.
- Check the message center and confirm the remote start function is enabled. Refer to the Owner's Literature or Instrumentation, Message Center, and Warning Chimes Testing and Inspection.
- Is the remote start function enabled?
Yes
GO to E6.
No
ENABLE the remote start function. TEST the system for normal operation.
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E6 CHECK THE BCM LAST RECEIVED RKE TRANSMITTER BUTTON PRESS (LST_RKE_xMTR) TRANSMITTER PID
- Enter the following diagnostic mode on the scan tool: DataLogger - BCM.
- Press the remote start button on the IKT and note the PID status.
- Does the selected PID indicate the remote start button was the last button pressed?
Yes
GO to E7.
No
INSTALL and PROGRAM a new IKT. REFER to Anti-Theft - Passive Anti-Theft System (PATS) Key Programming. TEST the system for normal operation.
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E7 CHECK THE PCM WAKE UP CIRCUIT
- Ignition OFF.
- Disconnect: PCM C175B (5.0L and 6.2L), C1381B (3.7L) or C1551B (3.5L).
- Ignition ON.
- Measure the voltage between the PCM C1551B-28 (3.5L), circuit CE436 (VT/OG), harness side and ground.
- Measure the voltage between the PCM C175B-35 (5.0L and 6.2L) or C1381B-35 (3.5L), circuit CE436 (VT/OG), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to E8.
No
VERIFY BCM fuse 18 (10A) is OK. If OK, REPAIR circuit CE436 (VT/OG) for an open. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. Diagrams By Number
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E8 CHECK THE REMOTE START PRECONDITIONS FOR CORRECT OPERATION
NOTE: The Body Control Module (BCM) acknowledges the remote start request and that all preconditions have been met by providing 2 short flashes of the turn indicators and a system complete chirp.
- Make sure that the following preconditions for remote start have been met:
- Hood is closed with no DTC present.
- Ignition must be off
- Vehicle must be in PARK.
- Remote start feature is configured ON.
- Number of remote start events does not exceed allowed time (2 events in a 1 hour duration).
- Attempt to carry out a remote start.
- Is the remote start system still inoperative?
Yes
INSTALL a new PCM. REFER to Electronic Engine Controls Service and Repair. TEST the system for normal operation.
No
CARRY OUT the required precondition as necessary. TEST the system for normal operation.
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