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Front Wiper Switch Test

  1. Remove in-line wiper system circuit breaker on side of fuse block. See Fig 1 . Fuse block is mounted to left dash panel, outboard of steering column. Turn ignition switch to ACCESSORY or ON position. Using a voltmeter, check for battery voltage at battery side of circuit breaker connector (Violet/Brown wire). If battery voltage does not exist, repair open Violet/Brown wire between circuit breaker connector and ignition switch. If battery voltage exists, go to next step.
  2. Check for battery voltage at intermittent wiper control module side of circuit breaker connector (Light Green/Black wire) with wiper system circuit breaker installed. If battery voltage does not exist, replace faulty circuit breaker. If battery voltage exists, go to next step.
  3. Disconnect intermittent wiper control module output connector (Gray connector). Intermittent wiper control module is mounted to lower instrument panel, behind knee bolster, near steering column. Turn ignition switch to ACCESSORY or ON position. Check for battery voltage at Gray intermittent wiper control module output connector terminal "D" (Light Green/Black wire). See Fig 2 . If battery voltage does not exist, repair open in Light Green/Black wire between connector and circuit breaker. If battery voltage exists, go to next step.
  4. Turn ignition switch to OFF position. Using an ohmmeter, check for continuity between intermittent wiper control module output connector terminal "G" (Black wire) and chassis ground. If no continuity exists, repair open in Black wire between connector and chassis ground. If continuity exists, go to next step.
  5. Backprobe wiper motor connector terminal No. 4 (Black wire). Check for continuity between connector terminal and chassis ground. See Fig 3 . If no continuity exists, repair open Black wire between connector and ground. If continuity exists, go to next step.
  6. Remove intermittent wiper control module and replace with a known good unit. See INTERMITTENT WIPER CONTROL MODULE  under REMOVAL & INSTALLATION. Test all modes of wiper system operation. If okay, replace faulty intermittent wiper control module. If not okay, install original intermittent wiper control module and go to next step.
    WARNING: Deactivate air bag system before performing any service operation involving steering column components. See AIR BAG RESTRAINT SYSTEM article. DO NOT  apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
  7. Disconnect multifunction switch connector. See FRONT WIPER SWITCH  under REMOVAL & INSTALLATION. Using an ohmmeter, check for continuity as specified in WIPER SWITCH CONTINUITY  . See Fig 4 . If switch fails any continuity test, replace faulty multifunction switch and go to FRONT WIPER MOTOR TEST  . If switch passes all continuity tests, go to next step.
  8. Turn ignition switch to ACCESSORY or ON position. Place wiper switch in LOW position and depress washer switch. Using a voltmeter, backprobe Black intermittent wiper control module input connector terminal "E" (Brown/White wire). See Fig 2 . Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Brown/White wire between connector and wiper switch. If battery voltage exists, go to next step.
  9. Place wiper switch in MIST position and depress washer switch. Backprobe Black intermittent wiper control module input connector terminal "E" (Brown/White wire). Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Brown/White wire between connector and wiper switch. If battery voltage exists, go to next step.
  10. Place wiper switch in HIGH position. Backprobe Black intermittent wiper control module input connector terminal "C" (Red/Yellow wire). Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Red/Yellow wire between connector and wiper switch. If battery voltage exists, go to next step.
  11. Place wiper switch in HIGH or LOW position. Backprobe Black intermittent wiper control module input connector terminal "F" (Dark Blue wire). Check for battery voltage at connector terminal. Move wiper switch to OFF position. Verify battery voltage remains until wipers return to PARK position. If not okay, repair open Dark Blue wire between connector and wiper switch. If okay, go to FRONT WIPER MOTOR TEST  .
Fig 1: Identifying Fuse Block Components
G95I35384Courtesy of CHRYSLER CORP.
Fig 2: Identifying Intermittent Wiper Control Module Connector Terminals
G95J35369Courtesy of CHRYSLER CORP.
WIPER SWITCH CONTINUITY

Switch Position Continuity Between Terminals No.
OFF 6 & 7
DELAY (1) 1 & 2, 1 & 4, 2 & 4, 8 & 9
LOW 4 & 6
HIGH 4 & 5
WASH 3 & 4
(1) Resistance at maximum delay should be 270,000-330,000 ohms. Resistance at minimum delay should be zero ohms with ohmmeter set on high ohm scale.
Fig 3: Identifying Front Wiper Motor Connector Terminals
G95C35370Courtesy of CHRYSLER CORP.
Fig 4: Identifying Multifunction Switch Connector Terminals
G95G35374Courtesy of CHRYSLER CORP.
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