P0622

Tests 1- 2:

Tests 3 - 7:

Test 8:

SYMPTOM
P0622-GENERATOR FIELD CONTROL CIRCUIT

WHEN MONITORED
With the ignition ON. Engine running.

SET CONDITION
When the PCM tries to regulate the generator field with no result during monitoring. One Trip Fault.

POSSIBLE CAUSES
- Wiring harness intermittent
- Generator operation
- Generator field ground circuit open
- Generator field control circuit shorted to battery voltage
- Generator field control circuit shorted to ground
- Generator field control circuit open
- PCM