P1621, P1622
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9-3 (9400)
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1999
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2. Engine
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Motronic 2.10.3 (B204i)
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Fault diagnosis, diagnostic trouble codes
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P1621, P1622
Read the instructions below then
start the fault diagnostic procedure
.
Symptom: A/C not working.
P1621, P1622
A/C Relay Circuit. Short to B+.
A/C Relay Circuit. Open / Short to Ground.
Fault symptoms
A/C not working.
Conditions
Break or short circuit to ground/B+ in the circuit to pin 33.