XL-7 2WD V6-3.6L (2007)
Keyless Starting System: Testing and Inspection
Remote Vehicle Start Inoperative
Diagnostic Fault Information
Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. See: Testing and Inspection/Initial
Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle Diagnostic Information
Circuit/System Description
Remote vehicle start (RVS) begins as an RF message received by the remote control door lock receiver (RCDLR) from a keyless entry transmitter. The
RVS request is sent by the RCDLR to the body control module (BCM) via serial data. The BCM monitors system conditions such as content theft
deterrent (CTD), hood ajar status, and body DTCs to determine if an RVS even will occur. If conditions are determined to be acceptable, the RVS
message is sent to the powertrain control module (PCM). The PCM monitors system conditions such as engine control parameters and vehicle theft
deterrent (VTD) to determine if engine starting will be allowed. If conditions are acceptable, the PCM will initiate engine starting. During the engine run
time in a RVS attempt, before the operator enters the vehicle, the PCM may discontinue engine operation if system conditions require it or a message is
received from the BCM requesting the engine be turned OFF.
Diagnostic Aids
The RVS system will not operate if any of the following conditions are present:
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The vehicle is in valet mode.
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More than 2 remote starts have been attempted.
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The hazard switch is in the ON position.
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A current hazard switch DTC is set.
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The vehicle hood is ajar.
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A current hood ajar DTC is set.
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The CTD system detects an alarm trigger.
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Excessive engine RPM
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Excessive coolant temperature
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Accelerator pedal position greater than 0 percent
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Vehicle not in park
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Vehicle theft deterrent malfunction
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A current automatic transmission shift lock control system DRC is set.
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A vehicle speed sensor signal is detected by the PCM.
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A current vehicle DTC that illuminates the malfunction indicator lamp (MIL)
Circuit/System Verification
1. Verify that RVS is enabled in the vehicle driver information center (DIC).
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If RVS is not enabled, use the DIC to turn on RVS functionality.
2. Verify that the keyless entry functions operate with all available keyless entry transmitters.
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If the keyless entry system does not function properly with all available transmitters, refer to [Keyless Entry System Inoperative].
3. With a scan tool, verify that no RVS Disable History is present.
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If RVS disable history is present, refer to the applicable subsection in which the failure occurred.
4. With a scan tool, verify that there are no Current CTD Triggers present.
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If a CTD trigger exists, refer to [Content Theft Deterrent Malfunction].
