Test 55B - Headlamp & PRKNG Lamps Inoperative In Auto Mode

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAMS . Perform TEST VER-1 after each repair.

CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.

Turn headlamp switch to ON position. If headlamps do not illuminate, repair headlamps as necessary. If headlamps illuminate, go to next step.
NOTE: Diagnostic TEST 17A through TEST 25J are related to Automatic Temperature Control (ATC) system. Test procedures for A/C-HEATER SYSTEM - AUTOMATIC article may be found in the AIR CONDITIONING & HEAT section.
Turn headlamp switch to OFF position. Using DRB, read trouble codes. If DRB displays ATC SUN LOAD SENSOR FAILURE, go to TEST 25G. If DRB does not display ATC SUN SENSOR LOAD FAILURE, go to next step.
Using DRB, actuate headlamp relay. If headlamps do not toggle on and off, go to step 7). If headlamps toggle on and off, go to next step.
Using DRB, stop headlamp relay actuation. Turn headlamp switch to "A" position. Using DRB, read AUTO headlamp status. If DRB displays ULTRALIGHT ON, go to TEST 55G . If DRB does not display ULTRALIGHT ON, go to next step.
Ensure headlamp switch is in "A" position. Remove headlamp switch from dash. Leave headlamp switch connector connected. Using DRB in voltmeter mode, check voltage on headlamp switch connector terminal No. 1 (Yellow wire). If voltage is less than 10 volts, replace headlamp switch. If voltage is more than 10 volts, go to next step.
Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Black connector. BCM is located behind right kick panel. Ensure headlamp switch is in "A" position. Using DRB in voltmeter mode, check voltage on BCM Black connector terminal No. 11 (Yellow wire). If voltage is less than 10 volts, repair open Yellow wire. If voltage is more than 10 volts, replace BCM.
Using DRB, stop headlamp relay actuation. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Connect jumper wire between BCM Gray connector terminal No. 2 (Red/Dark Blue wire) and ground. If headlamps illuminate, replace BCM. If headlamps do not illuminate, go to next step.
Disconnect jumper wire. Disconnect headlamp delay relay from junction block. See Figure . Junction block is located behind end cover, on left side of instrument panel. Using DRB in voltmeter mode, check voltage on headlamp delay relay connector terminal "A" (Red/White wire). If voltage is less than 10 volts, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
Using DRB in voltmeter mode, check voltage on headlamp delay relay connector terminal "C" (Red/White wire). If voltage is less than 10 volts, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
Connect jumper wire between headlamp delay relay connector terminals "A" (Red/White wire) and "B" (Light Green wire). If headlamps do not illuminate, repair open Light Green wire. If headlamps illuminate, go to next step.
Disconnect jumper wire. Using an external ohmmeter, check resistance of Red/Dark Blue wire between headlamp delay relay connector terminal "E" and BCM Gray connector terminal No. 2. If resistance is more than 5 ohms, repair open Red/Dark Blue wire. If resistance is less than 5 ohms, replace headlamp delay relay.