1. Checking the temperature sensors inside and outside the cabin.
A) Measure the resistance between terminals 1 and 2 of the connector.
b) If resistance differs from specified, then replace the corresponding gauge.
2. Checking the additional instrument cluster.
A) Disconnect the connectors from the additional instrument cluster.
b) Check the connectors on the wire side as shown in the table.
V) If the circuit parameters match those given in the table, then replace the additional instrument cluster.
G) If the circuit parameters do not match those given in the table, then check other circuits and systems.