Checking The Power Supply, Climate Control Module

Checking the power supply, climate control module

Checking the cable
- Check the cable for the 30-supply between climate control module #A1 and the battery positive terminal. Check for contact resistance, an open-circuit and a short-circuit to ground
- Check the cable for the 15-supply between climate control module #A5 and the power supply. Check for contact resistance, an open-circuit and a short-circuit to ground.

Hint: Climate control module terminal #A5 is only supplied with power when the ignition is on (when the system relay for air conditioning (A/C) is activated).

Other information:
- To connect the breakout box, see Connecting the breakout box, climate control module Connecting The Breakout Box
- For information about signals, see Climate control signal specifications Signal Specification
- For further information about fuses etc, refer to Wiring diagrams
- For information about the system relay for the climate control module position, see Electrical / electronic system specifications [1][2]Specifications
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault









Was a fault detected?

Yes - Fault-tracing information

No - No Fault Found

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

Do you want to terminate fault-tracing at this time?

Yes - Exit fault-tracing

No - Attempt New Test

------------------------

Attempt New Test - Checking the cable

-------------------------------------------------