Chrysler PT Cruiser 2001 Service Manual Supplement page 2476

CHARGING
Symptom:
P0622-GENERATOR FIELD NOT SWITCHING PROPERLY
GENERATOR FIELD WIRING HARNESS INTERMITTENT PROBLEM
GENERATOR FIELD WIRING HARNESS OBSERVABLE PROBLEM
ASD RELAY OUTPUT CIRCUIT OPEN
GENERATOR FIELD DRIVER CIRCUIT OPEN
GENERATOR FIELD DRIVER CIRCUIT SHORTED TO GROUND
GENERATOR FIELD RESISTANCE >= 5.0 OHMS
POWERTRAIN CONTROL MODULE
TEST
1 Ignition on, engine not running.
With the DRBIII , actuate the Generator Field Driver Circuit.
Using a 12-volt test light, backprobe the Generator Field Driver Circuit at the back
of the Generator.
Did the light blink?
Yes → Go To 2
→ Go To 4
No
2 Ignition on, engine not running.
With the DRBIII actuate the Generator Field Driver Circuit.
Note: Actuator Test should still be running.
Wiggle Wiring Harness from the Generator to PCM.
With the DRBIII , read DTC's.
Does the Generator Field Driver (-) Circuit code return?
Yes → Repair as necessary where wiggling caused problem to appear.
→ Go To 3
No
3 Turn the ignition off.
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?
Yes → Repair as necessary.
→ Test Complete.
No
4 Ignition on, engine not running.
With the DRBIII , record all DTC's and freeze frame data, then erase Codes.
Carefully inspect all Connectors for corrosion or spread Terminals before continuing.
With the DRBIII actuate the Generator Field Driver Circuit.
Backprobe the ASD Relay Output Circuit at back of Generator.
Is the voltage above 10.0 volts?
Yes → Go To 5
→ Repair the open ASD Relay Output Circuit.
No
POSSIBLE CAUSES
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
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APPLICABILITY
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All
All
All