Checking negative cable, coolant
temperature switch
Tools:
885675 Break-out cable
88890074 Multimeter
1 NOTICE! Cut the current with the main switch.
2 Disconnect the connector from the sensor
3
Connect break-out cable 885675 to the cable har-
ness connector to the engine control unit.
4 Use multimeter 88890074 to do resistance meas-
urement against the engine control unit.
Measurement points Nominal value
1 – Battery negative R ≈ 0 Ω
Checking negative cable, piston
cooling oil temperature switch
Tools:
9998534 Break-out cable
88890074 Multimeter
1 NOTICE! Cut the current with the main switch.
2
Undo the connector from the switch. Connect the
adapter cable (9998534) to the cable harness con-
nector that is connected to the engine control unit.
3 Use the multimeter (88890074) to do resistance
measurement against the engine control unit.
Measurement points Nominal value
2 – Battery negative R ≈ 0 Ω
885675
2
3
4
5
1
1
885675
P0004937
885675
2
3
4
5
1
885675
2
P0013512
30-2 Fault Tracing
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