DR-8B Charge Temperature Circuit to Computer

1. With diagnostic readout box connected to engine harness connector and both terminal connectors disconnected from the charge temperature switch, put system in Sensor Test Mode 93, then using a jumper wire connect tan wire to black wire.
2. If readout box display changes from 03 to 01 after jumper wire is connected, replace charge temperature switch.
3. If readout box display does not change from 03 to 01 after jumper wire is connected, proceed to Step C. DR-8C Charge Temperature Switch Control Wire