Wiper Speed Sensitive Feature Inoperative
NOTE:
For connector terminal identification and wiring diagrams, see
BODY CONTROL COMPUTER - INTRODUCTION article. Perform VERIFICATION TEST VER-1A
after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Connect scan tool to Data Link Connector (DLC). DLC is a 16-pin connector located under left side of dash, to left of steering wheel. Turn ignition switch to ON position. Using scan tool select Central timer module (CTM). If scan tool display is not blank or have a CCD bus failure message, go to next step. If scan tool display is blank or has a CCD bus failure message, see appropriate VEHICLE COMMUNICATIONS article.
- Using scan tool, read Powertrain Control Module (PCM). If scan tool display is not blank or have a CCD bus failure message, go to next step. If scan tool display is blank or has a CCD bus failure message, see appropriate VEHICLE COMMUNICATIONS article.
- Raise and support vehicle. Turn wipers on to lowest intermittent position. Time interval between wipes. Spin rear wheels to more than 15 MPH. If interval between wipes decreased to approximately 18 seconds, system is currently functioning properly. If interval between wipes did not decrease to approximately 18 seconds, replace CTM.