MSM Module Does Not Make Relay Click Sound When Any Power Seat Switch Input Is Selected
- Check power and ground circuits. See CHECKING POWER & GROUNDS under TESTING. Ensure connectors are firmly engaged into MSM module.
- To wake up MSM module, shift vehicle into any gear. Position sense voltage can be checked at MSM module 21-pin and 25-pin connectors. See MSM MODULE 21-PIN CONNECTOR TERMINAL IDENTIFICATION table and MSM MODULE 25-PIN CONNECTOR TERMINAL IDENTIFICATION table. Ensure driver power seat switch connector is seated firmly on inside and outside of shield.
- Using DVOM, check driver power seat switch for output voltage at appropriate terminals. See WIRING DIAGRAMS . Check for driver power seat switch output voltage at appropriate MSM module terminals. See MSM MODULE 21-PIN CONNECTOR TERMINAL IDENTIFICATION table and test terminals No. 1-4 and 12-15. See Figure . If voltage is not present at any terminal of MSM module, repair or replace seat wiring harness. If voltage is present at all terminals of MSM module, replace MSM module.