Test 1: All Power Windows Inoperative
- Turn ignition on. Check system related fuses/circuit breakers. See COMPONENT LOCATIONS table. Replace fuses/circuit breakers as needed and check for short to ground. See WIRING DIAGRAMS . Ensure battery voltage exists at both fuse/circuit breaker terminals. If voltage does not exist at either terminal, inspect and repair circuit as needed. If voltage exists at both fuse/circuit breaker terminals, go to next step.
- Remove master power window switch. Using DVOM, measure voltage between ground and terminal No. 1 (ignition feed circuit) at switch harness connector. If voltage exists, go to next step. If voltage does not exist, inspect and repair circuit as needed.
- Using DVOM, check for continuity between vehicle ground and terminal No. 9 (ground circuit) at switch harness connector. If continuity exists, replace master power window switch. If continuity does not exist, inspect and repair circuit as needed.