Wipers Inoperative
- Check fuse No. 5 (10-amp) in junction block and fuse "M" (40-amp) in power distribution center. See Fig 1
and Fig 2
. If fuses are okay, go to next step. If either fuse is blown, replace fuse and check system operation. If wipers are still inoperative and fuses are okay, go to step 3
. If replacement fuse blows, go to next step.
- If fuse No. 5 blows, check for short in Dark Blue wire between junction block connector C2 terminal No. 7 and wiper/washer switch connector terminal No. 1. See WIRING DIAGRAMS
. If "M" fuse blows, check for short to ground in Red/Orange wire between PDC and wiper ON/OFF relay connector terminals "A" or "D" and wiper HIGH/LOW wiper relay connector terminal "A".
- Disconnect wiper motor harness connector. Connect a jumper wire between positive battery terminal and wiper motor terminal No. 2 (component side). Connect another jumper wire between negative battery terminal and wiper motor terminal No. 5 (component side). See Fig 3
. If wipers operate at low speed, go to next step. If wipers do not operate at low speed, replace wiper motor. See WIPER MOTOR
under REMOVAL & INSTALLATION.
- Connect positive jumper wire to wiper motor terminal No. 1 (component side). Connect negative jumper wire to wiper motor terminal No. 5 (component side). If wipers operate at high speed, go to next step. If wipers do not operate at high speed, replace wiper motor. See WIPER MOTOR
under REMOVAL & INSTALLATION.
- Check continuity between ground and wiper motor harness connector terminal No. 5 (Black wire). If continuity exists, go to next step. If continuity does not exist, repair open in Black wire.
- Remove intermittent wiper relay. Turn wiper/washer switch on. Check for resistance at intermittent wiper relay terminals "A" (Red/Orange wire) and "D" (Red/Orange wire). See Fig 2
. If battery voltage exists, go to next step. If battery voltage does not exist, repair open circuit between fuse "M" and intermittent wiper relay in power distribution center.
- Remove HIGH/LOW wiper relay. Check continuity in Red/Yellow wire between HIGH/LOW wiper relay terminal "D" and wiper motor harness connector terminal No. 1. See Fig 2
and Fig 3
. Check continuity in Brown/White wire between HIGH/LOW wiper relay terminal "E" and wiper motor harness connector terminal No. 2. If continuity exists, go to next step. If continuity does not exist, repair open Red/Yellow wire and/or Brown/White wire.
- Check continuity in Dark Green wire between HIGH/LOW wiper relay terminal "B" and intermittent wiper relay terminal "B". If continuity does not exist, repair open Dark Green wire. If continuity exists, check for faulty relays. If relays are okay, go to next step.
- Turn ignition off. Disconnect Body Control Module (BCM) White 12-pin harness connector C3. See Fig 4
. Check continuity in Red/Violet wire between BCM harness connector C3 terminal No. 4 and intermittent wiper relay terminal "C". If continuity exists, go to next step. If continuity does not exist, repair open Red/Violet wire.
- Disconnect BCM Black 24-pin harness connector C2. Check voltage at BCM harness connector C2 terminal No. 8 (Dark Green/Red wire). Turn ignition on. Slowly move wiper/washer switch from OFF position through each position to HIGH position. If zero volts exists, go to next step. If voltage increases from zero volts to about 10 volts in HIGH position, replace BCM. See
BODY CONTROL MODULES - CONCORDE, INTREPID, LHS & 300M article.
- Turn ignition off. Check continuity in Dark Green/Red wire between wiper/washer switch connector terminal No. 3 and BCM harness connector C2 terminal No. 8. If continuity exists, go to next step. If continuity does not exist, repair open Dark Green/Red wire.
- Turn ignition on. Measure voltage at wiper/washer switch connector terminal No. 1 (Dark Blue wire). If battery voltage exists, replace wiper/washer switch. If battery voltage does not exist, repair open circuit to fuse No. 5 in junction block.
Courtesy of CHRYSLER CORP.
Courtesy of CHRYSLER CORP.
Courtesy of CHRYSLER CORP.
Courtesy of CHRYSLER CORP.