Troubleshooting Hints - Brake Transaxle Shift Interlock

1. Check the Brake Transmission Shift Interlock (BTSI) Fuse for an open. If the Fuse is blown, check for a short to ground in CKT 1020.
2. Check the IGN MAIN 1 Maxifuse for an open. If the Maxifuse is blown, check for a short to ground in CKT 42.
3. Make sure G117 is clean and tight
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (refer to General Troubleshooting Procedures). Diagnostic Aids
^ Refer to System Diagnosis.