Inspection Procedure

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PREPARATION:

Connect the hand-held tester to the DLC3. CHECK:

Check the engine coolant temp. sensor using DATA LIST.

PREPARATION:

Remove engine coolant temp. sensor. CHECK:

Measure resistance between terminals. OK:

Resistance is within acceptable zone on chart.

Water temperature

Resistance

Replace engine coolant temp. sensor.

3 Check for open and short in harness and connector between ECM and engine coolant temp. sensor (See page IN-41).

Check multiplex communication system (See page DI-762).

DI7S9-03

DTC

21

Solar Sensor Circuit

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