Pinpoint Test O: The Autolock Does Not Operate Correctly
Handles, Locks, Latches and Entry Systems
Pinpoint Test O: The Autolock Does Not Operate Correctly
Normal Operation
The Smart Junction Box (SJB) energizes the lock relay based upon input from the ajar switches, the Transmission Range (TR) sensor, and the vehicle speed signal. The SJB locks the doors when the following conditions are met:
- All the doors are closed
- The ignition switch is in the ON position
- The vehicle is shifted into any gear putting the vehicle in motion
- The vehicle attains a speed greater than 20 km/h (12 mph)
NOTE: The autolock feature is not available on vehicles equipped with a manual transaxle.
This pinpoint test is intended to diagnose the following:
- Ignition switch
- Door ajar switches
- Vehicle speed signal
- TR sensor
- SJB
PINPOINT TEST O: THE AUTOLOCK DOES NOT OPERATE CORRECTLY
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O1 CHECK THE AUTOLOCKS CONFIGURATION
- Check to see if the autolocks are enabled. Refer to Autolock and Auto-Unlock Programming Autolock and Auto-Unlock Programming.
- Are the autolocks enabled?
Yes
GO to O2.
No
ENABLE the autolocks. REFER to Autolock and Auto-Unlock Programming Autolock and Auto-Unlock Programming. TEST the system for normal operation.
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O2 CHECK THE COURTESY LAMP OPERATION
- Open and close each door while observing the courtesy lamp operation.
- Do the courtesy lamps operate correctly?
Yes
GO to O3.
No
REFER to Interior Lighting Testing and Inspection.
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O3 CHECK THE SJB IGNITION STATUS PID
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: SJB DataLogger .
- Monitor the SJB PID (IGN_R_ECU).
- Does the ignition status PID indicate ON?
Yes
GO to O4.
No
REFER to Steering Column Switches Testing and Inspection to continue diagnosis of the ignition switch.
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O4 CHECK THE VEHICLE SPEED OPERATION
- Check the operation of the speedometer.
- Does the speedometer operate correctly?
Yes
GO to O5.
No
REFER to Instrumentation, Message Center, and Warning Chimes Testing and Inspection
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O5 RETRIEVE THE RECORDED SJB DTCs FROM THE CONTINUOUS SELF-TESTS
- Check for recorded SJB DTCs from the continuous self-tests.
- Is DTC U0155 recorded?
Yes
REFER to Module Communications Network Testing and Inspection.
No
GO to O6.
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O6 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new SJB. REFER to Multifunction Electronic Modules Service and Repair. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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