Was the entire BTSI System Check performed?

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Go to Step 2

Go to Automatic Transmission Shift Lock Control System Check

1. Disconnect the stoplamp switch assembly connector C2.
2. Turn the ignition switch to the RUN position.
3. Backprobe the brake transmission shift interlock (BTSI) solenoid terminal B with a test light to ground.

Is the test light on?

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Go to Step 3

Go to Step 4

Repair the short to B+ in circuit 1135.

Is the repair complete?

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Go to Step 7

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1. Turn the ignition switch to the OFF position.
2. Reconnect the stoplamp switch assembly connector C2.
3. Turn the ignition switch to the RUN position.
4. Backprobe the brake transmission shift interlock solenoid terminal B with a test light to ground.
5. Depress the brake pedal.

Is the test light on?

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Go to Step 5

Go to Step 6

Replace the stoplamp switch assembly. Refer to Stop Lamp Switch Replacement

Is the repair complete?

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Go to Step 7

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Replace the BTSI solenoid. Refer to Brake Transmission Shift Interlock Solenoid Replacement

Is the repair complete?

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Go to Step 7

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1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors/components disconnected.

Have all repairs been made?

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Go to Automatic Transmission Shift Lock Control System Check

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