Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
DEFINITION: Transmission shift lever does not lock in the PARK position with the ignition ON and the brake pedal not pressed. | ||||||||
1 | Did you perform the Symptoms - Automatic Transmission Shift Lock Control tests and all the necessary inspections? | -- | Go to Step 2 | |||||
2 |
Does the test lamp illuminate? | -- | Go to Step 3 | Go to Step 8 | ||||
3 |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 12 | ||||
4 | Connect a test lamp between the park/neutral position switch signal circuit at the automatic transmission shift lock control switch and a good ground. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 9 | ||||
5 |
Does the test lamp turn ON and OFF with the brake pedal? | -- | Go to Step 6 | Go to Step 14 | ||||
6 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 10 | ||||
7 | Connect a test lamp between the automatic transmission shift lock control solenoid ground circuit at the automatic transmission shift lock control solenoid and battery positive voltage (B+). Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 11 | ||||
8 | Repair the open in the park/neutral position switch power feed circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 18 | -- | ||||
9 | Repair the open in the park/neutral position switch signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 18 | -- | ||||
10 | Repair the open in the automatic transmission shift lock control switch signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 18 | -- | ||||
11 | Repair the open in the automatic transmission shift lock control solenoid ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 18 | -- | ||||
12 |
Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 13 | ||||
13 | Replace the park/neutral position switch. Refer to Park/Neutral Position Switch Replacement in Transmission. Did you complete the replacement? | -- | Go to Step 18 | -- | ||||
14 | Inspect for poor connections at the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 15 | ||||
15 | Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Did you complete the replacement? | -- | Go to Step 18 | -- | ||||
16 | Inspect for poor connections at the automatic transmission shift lock control solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 17 | ||||
17 | Replace the automatic transmission shift lock control solenoid. Refer to Automatic Transmission Shift Lock Control Disassemble - Off Vehicle Automatic Transmission Shift Lock Control Assemble - Off Vehicle Did you complete the replacement? | -- | Go to Step 18 | -- | ||||
18 | Operate the system in order to verify the repair. Did you find and correct the condition? | -- | System OK | Go to Step 2 | ||||
