Control Unit Input Test
SRS components are located in this area. Review the SRS component locations , and the precautions and procedures in appropriate AIR BAG article under RESTRAINTS before performing repairs or service.
- Disconnect the 22P connector from the multiplex control unit, driver's, then remove the control unit from the driver's under-dash fuse/relay box.
- Inspect the connectors and connector terminals to be sure they are all making good contact.
- If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 3.
- With the control unit still disconnected from its connectors and the fuse/relay box, make these input tests.
- If a test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 4.
- Reconnect the connectors to the multiplex control unit, and make this input test.
NOTE:
If the shift lock solenoid clicks when the ignition switch is turned ON (II) while pressing the brake pedal with the shift lever in the P position, the shift lock system is OK. If the shift lever cannot be shifted from the P position, test the A/T gear position switch.
- If a test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, substitute a known-good multiplex control unit, and recheck the system. If the system is OK, the multiplex control unit must be faulty; replace it.