Automatic Trans.

SYSTEM INSPECTION
1. Connect the SST to the PCM as shown.
2. Start the engine.
3. Drive the vehicle and verify that PCM terminals 12 and 33 voltage is battery positive voltage (B+) while the engine is still cold.
4. Warm up the engine to normal operating temperature.
5. Drive the vehicle and verify that the PCM terminals 12 and 33 voltage is set to change.
6. Stop the vehicle and run it at idle.
7. Ground the PCM terminal 33 by using a jumper wire.
8. Verify that the engine runs roughly or stalls at idle.