Pinpoint Test L: The Auto-Unlock Does Not Operate Correctly

Normal Operation 

The driver door module (DDM) energizes the unlock relay based on input from the ajar switches and the vehicle speed signal. The DDM unlocks the doors when the following conditions are met:

• The vehicle speed has exceeded 5 km/h (3 mph) then dropped to 0 km/h (0 mph) (vehicle stopped).
• The key is turned to the OFF or ACCY position.
• The LH front door is opened within 10 minutes of the key being turned to the OFF or ACCY position.

The auto-unlock feature is cancelled if the doors are locked with the door lock control switch or the remote keyless entry (RKE) transmitter within the 10 minute active window. After the 10-minute active window expires the auto-unlock feature does not unlock the doors if the driver door is opened.

This pinpoint test is intended to diagnose the following:

• Door ajar switches
• Vehicle speed sensor (VSS) message
• DDM

PINPOINT TEST L: THE AUTO-UNLOCK DOES NOT OPERATE CORRECTLY 

1. L1 CHECK FOR THE AUTO-UNLOCK FEATURE BEING DISABLED 
   • Toggle the auto-unlock feature. Refer to Autolock and Horn Chirp Programming .
   • Drive the vehicle.
   • Does the auto-unlock feature work? 
   1. YES  : The system is operating normally at this time.
   2. NO  : Go to  L2.
2. L2 CHECK FOR THE AUTO-UNLOCK FEATURE BEING ENABLED 
   • Toggle the auto-unlock feature. Refer to Autolock and Horn Chirp Programming .
   • Drive the vehicle.
   • Does the auto-unlock feature work? 
   1. YES  : The system is operating normally at this time.
   2. NO  : Go to  L3.
3. L3 CHECK THE DRIVER DOOR AJAR PID 
   • Key in OFF position.
   • Connect the diagnostic tool.
   • Key in ON position.
   • Close all the doors and the luggage compartment lid.
   • Enter the following diagnostic mode on the diagnostic tool: DDM DataLogger
   • Does the DDM D_DR_SW PID read AJAR? 
   1. YES  : REFER to INTERIOR LIGHTING article.
   2. NO  : Go to  L4.
4. L4 CHECK THE PASSENGER DOOR AJAR PID 
   NOTE: Make sure that all the doors are still closed.
   • Enter the following diagnostic mode on the diagnostic tool: DDM DataLogger
   • Does the DDM P_DR_SW PID read AJAR? 
   1. YES  : REFER to INTERIOR LIGHTING article.
   2. NO  : Go to  L5.
5. L5 CHECK THE IGNITION SWITCH POSITION STATUS 
   • Enter the following diagnostic mode on the diagnostic tool: LCM DataLogger
   • Key in ON position.
   • Monitor the LCM IGN_SW PID.
   • Does the LCM IGN_SW PID display correctly? 
   1. YES  : Go to  L6.
   2. NO  : REFER to STEERING COLUMN SWITCHES article.
6. L6 CHECK THE INSTRUMENT CLUSTER SPEEDOMETER AND PRNDL OPERATION 
   • Check the instrument cluster speedometer and PRNDL operation.
   • Do the speedometer and PRNDL operate correctly? 
   1. YES  : Go to  L7.
   2. NO  : REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, & WARNING CHIMES article.
7. L7 CHECK FOR CORRECT DDM OPERATION 
   • Disconnect all the DDM connectors.
   • Check for:
     • corrosion
     • damaged pins
     • pushed-out pins
   • Connect all the DDM connectors and make sure they seat correctly.
   • Operate the system and verify the concern is still present.
   • Is the concern still present? 
   1. YES  : INSTALL a new DDM. REFER to MULTIFUNCTION ELECTRONIC MODULES article. PROGRAM all the remote keyless entry (RKE) transmitters. REFER to Remote Keyless Entry Transmitter Programming . CONFIRM that the auto-unlock feature operates correctly. If the auto-unlock feature still does not operate correctly, TOGGLE the auto-unlock feature. REFER to Autolock and Horn Chirp Programming . CLEAR the DTCs. REPEAT the self-test.
   2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.