Windshield Wiper Test 1A - Identifying Windshield Wiper System Problems
NOTE:
Perform SYMPTOM ID TEST 1A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. Perform, after each repair, VERIFICATION TEST VER-1A - VERIFICATION PROCEDURE
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
Using scan tool, read DTCs. If wiper park switch failure DTC is displayed, go to TEST 2A. If wiper park switch failure DTC is not displayed, see WINDSHIELD WIPER SYSTEM DIAGNOSTIC TEST DIRECTORY table.
NOTE:
Central Timer Module (CTM) is used for intermittent and speed sensitive feature only. If low or high speed problems exist, see WIPER/WASHER SYSTEM
article.
WINDSHIELD WIPER SYSTEM DIAGNOSTIC TEST DIRECTORY
| Problem | Perform |
|---|---|
| Intermittent Wipers Inoperative, No DTCs | WINDSHIELD WIPER TEST 3A |
| Wiper Speed Sensitive Feature Inoperative | WINDSHIELD WIPER TEST 4A |
| Wiper Inoperative After Washer Used | WINDSHIELD WIPER TEST 5A |