Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description .
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the Brake Shift Interlock Control System. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Shift Lock Control Schematics DEFINITION: This table will test a operation of the automatic transmission shift lock control system | ||||
1 | Did you review the automatic transmission shift lock control description and perform the necessary inspections? | -- | Go to Step 2 | |
2 | Verify the fault is present. Does the system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the shift lever move out of the PARK position? | -- | Go to Step 4 | Go to Automatic Transmission Shift Lock Control Always On with Ignition in Run |
4 |
Does the shift lever move out of the PARK position? | -- | Go to Testing for Intermittent Conditions and Poor Connections | |
