Checking supply cable, crankcase
pressure sensor
Tools:
885675 Break-out cable
88890074 Multimeter
1 NOTICE! Turn ignition off.
2 Remove the connector from the sensor. Connect
break-out cable 885675 between the sensor and
engine control unit.
3
Use multimeter 88890074 for voltage measure-
ment.
4 NOTICE! Turn ignition on.
Measurement points Nominal value
1 – 4 U ≈ 5 V
Checking the fan speed sensor
Description: The fan speed sensor is a Hall effect sensor.
Special tools: • 9990014 Break-out cable
• 9998699 Break-out box
•
88890074 Multimeter
Measurement procedure: 1 Turn the main switch off.
2 Perform Fault tracing of cables and connectors page 62.
3 Connect 9990014 Break-out cable according to description.
4 Turn the main switch on.
5 Turn the ignition on
6 Start the measurement.
Measurement points: A7 (sensor supply +), A39 (sensor supply -), A35 (sensor output)
A7 - A39
A35 - A39
U ≈ 5V
U ≈ Pulse output. 6 pulses/revolution.
P0001355
30-2 Fault Tracing
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