DR-8C Charge Temperature Switch Control Wire

1. With diagnostic readout box connected to engine harness connector and both terminal connectors disconnected from the charge temperature switch and system in Sensor Test Mode 93, using a jumper wire connect tan wire to ground.
2. If readout box display changes from 03 to 01 after jumper wire is connected, locate and repair open circuit in black wire.
3. If readout box display does not change from 03 to 01 after jumper wire is connected, locate and repair open circuit in tan wire.