Pinpoint Test Ab: The Daytime Running Lamps (DRL) Are Inoperative
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- AB1 VERIFY THE DRL OPERATION
- Key in ON position.
- Place the headlamp switch in the OFF position.
- If equipped with an automatic transaxle, place the gear selector lever in any gear other than PARK (P).
- If equipped with a manual transaxle, release the parking brake.
- Do the DRL illuminate?
- YES : The system is operating correctly. INFORM the customer of the conditions required for the DRL to operate correctly.
- NO : Go to AB2.
- AB2 CHECK FOR RECORDED SJB DTCs
- Review the recorded results from the SJB self-test.
- Are any DTCs present?
- YES : REFER to MULTIFUNCTION ELECTRONIC MODULES article.
- NO : Go to AB3.
- AB3 CHECK THE OPERATION OF THE HEADLAMPS
- Place the headlamp switch in each of its positions (including autolamps if equipped) and observe the headlamps.
- Do the headlamps and autolamps (if equipped) operate correctly?
- AB4 CHECK THE IGNITION SWITCH INPUT
- Place the headlamp switch in the OFF position.
- Enter the following diagnostic mode on the diagnostic tool: DataLogger
- Monitor the SJB ignition switch PID (IGN SW) while cycling the ignition switch through all its positions.
- Does the PID agree with the ignition switch positions?
- YES
: For vehicles with an automatic transaxle, go to AB5.
For vehicles with a manual transaxle, go to AB6.
- NO : REFER to STEERING COLUMN SWITCHES article.
- AB5 CHECK THE TRANSAXLE GEAR INPUT
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: DataLogger
- Monitor the PCM transmission gear status PID (TR) while placing the gear selector lever through all its positions.
- Does the PID agree with the gear selection?
- YES : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation.
- NO : REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - CD4E article or AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) article.
- AB6 CHECK THE BRAKE WARNING INDICATOR OPERATION
- Key in ON position.
- Apply and release the parking brake while observing the brake warning indicator.
- Does the brake warning indicator operate correctly?
- YES : Go to AB7
- NO : REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article.
- AB7 CHECK SJB FOR DRL CONFIGURATION
- Enter the following diagnostic mode on the diagnostic tool: SJB Module Programming
- Check the SJB configuration and make sure the DRL feature is enabled.
- Is the SJB DRL configuration enabled?
- YES : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation.
- NO : ENABLE the DRL configuration. TEST the system for normal operation.