Pinpoint Test Z: The DRL Are Inoperative
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- Z1 VERIFY THE DRL OPERATION
- Ignition ON.
- 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 Z2.
- Z2 CHECK THE OPERATION OF THE HEADLAMPS (VEHICLES WITH HALOGEN HEADLAMPS) OR FOG LAMPS (VEHICLES WITH HID HEADLAMPS)
- Place the headlamp switch in the HEADLAMPS ON position (and engage the fog lamp switch for vehicles with HID headlamps) and observe the headlamps/fog lamps.
- Do the headlamps/fog lamps operate correctly?
- Z3 CHECK THE IGNITION SWITCH INPUT
- Place the headlamp switch in the OFF position.
- Enter the following diagnostic mode on the scan tool: SJB DataLogger.
- Monitor the SJB ignition switch PIDs (IGN_A_ECU, IGN_O_ECU, IGN_R_ECU, IGN_S_ECU) 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 Z4. For vehicles with a manual transaxle, GO to Z5.
- No : REFER to STEERING COLUMN SWITCHES article to diagnose the ignition switch input.
- Z4 CHECK THE TRANSAXLE GEAR INPUT
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: PCM 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 -- FUSION, MILAN & MKZ article. TEST the system for normal operation.
- No : REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - AISIN AW21 -- FUSION & MKZ article, AUTOMATIC TRANSAXLE/TRANSMISSION - 6F35 -- FUSION & MILAN article or AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) - FUSION HYBRID, MILAN HYBRID & MKZ HYBRID article to diagnose the digital Transmission Range (TR) sensor input.
- Z5 CHECK THE BRAKE WARNING INDICATOR OPERATION
- Ignition ON.
- Apply and release the parking brake while observing the brake warning indicator.
- Does the brake warning indicator operate correctly?
- Yes : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article. TEST the system for normal operation.
- No : REFER to INSTRUMENTATION, MESSAGE CENTER & WARNING CHIMES -- FUSION, MILAN & MKZ article to diagnose the brake warning indicator.