2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction
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2F12 - P0645 (DME)
2F12 - P0645
Information saved in
DME
Fault code
2F12 - P0645
Fault text
Air-conditioning compressor, activation
Fault description
A/C Clutch Relay Control Circuit
Condition for fault identification
Test condition:
Air conditioner relay control-activation monitor; air conditioning initialized
Briefly triggered by relay
Air conditioning installed and switched on
Terminal condition: Terminal 15 ON Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
1 sec.
Action in service
2. Check wiring Repair if defective
If wiring is OK proceed
to check component, a/c compressor relay
Fault effect and breakdown warning
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