| Fault Code Description |
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The control electronics for the electric A/C compressor does not respond. Possible causes: The control electronics for the electric A/C compressor are faultyThe control electronics for the electric A/C compressor are connected to the wiring harness but is not being supplied with powerThe bus connection to the electric A/C compressor is interrupted. |
| Fault Code Conditions | |
|---|---|
| General Conditions |
Supply voltage: 9 V - 16 V |
| Terminal Condition |
Terminal 15 on |
| Driving Conditions | |
| Fault Time Condition |
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The fault is entered if no response telegram is received from the control electronics of the electric air conditioning compressor 15 times in succession. |
| Service Plan |
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Perform the electric A/C compressor functional check with the test module If the functional check is not successful: Check the voltage supply to the control electronics of the electric air conditioning compressorIf the supply voltage is OK, check wires and plug connectionIf the voltage and bus connection are OK, replace the electric A/C compressor. |
| Fault Impact |
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The electric A/C compressor does not function. A cooling of the passenger compartment and the high-voltage battery is not possible. |
| Warnings | |
|---|---|
| Warning Lights | |
| Control Center Messages | |
| Service Notes |
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The high voltage energy accumulator is no longer cooled if a permanent fault occurs. This can cause restrictions in the electric drive's ability to support vehicle driving. Caution: observe safety rules when working with the high-voltage vehicle electric system! |