Windshield Wiper Test 6A - Wiper Speed Sensitive Feature Inoperative
NOTE:
Perform POWER WINDOW TEST 1A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. Refer to WIPER/WASHER SYSTEM
article. After each repair, perform TEST VER-1A
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting any module connector. Ensure all connectors are clean and tight.
- Raise and support vehicle. Adjust wipers to lowest intermittent position. Time intervals between wipes. Spin wear wheels to a speed above 15 MPH. If interval between wipes decrease to about 18 seconds, system is function okay at this time. If interval between wipes do not decrease to about 18 seconds, go to next step.
- Using scan tool, access wiper system monitor. If vehicle speed displayed on scan tool agrees with speedometer, replace BCM. BCM is located under left side of dash. See Figure in CHIME TEST 3A. If vehicle speed displayed on scan tool does not agree with speedometer, repair as required. See TESTS W/CODES article in the ENGINE PERFORMANCE Section.