DR-9C Coolant Sensor Wires to Computer

1. With diagnostic readout box connected and system in Sensor Test Mode 92 and coolant sensor connector disconnected, using a jumper wire connect black/red wire to ground.
2. If readout box display changes from 01 to 03 after jumper wire is connected, locate and repair open circuit in black/light blue wire.
3. If readout box display does not change from 01 to 03 after jumper wire is connected, locate and repair open circuit in black/red wire.