Chrysler PT Cruiser 2001 Service Manual Supplement page 2484

CHARGING
P1682-CHARGING SYSTEM VOLTAGE LOW —
TEST
14 Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the Generator Field harness connector.
Note: Check Connectors - Clean/repair as necessary.
Measure the Generator Field Driver Circuit from PCM to Generator.
Is the resistance below 5.0 ohms?
Yes → Go To 15
No
15 If there are no possible causes remaining.
View repair options.
Repair
16 Turn the ignition off.
Note: Battery must be fully charged.
Note: Generator Belt tension and condition must be checked before con-
tinuing.
Start the engine.
With theDRBIII , read the target charging voltage.
Is the target charging voltage above 15.1 volts?
Yes → Go To 17
No
17 Caution: KEEP CLEAR OF THE ENGINE'S MOVING PARTS.
Start the engine.
Turn on all accessories, manually set engine speed to 1600 RPM.
With DRBIII , read Target Charging and Charging voltage.
Compare the two readings.
Is there more than a 1.0 volt difference?
Yes → Test Complete.
No
18 Caution: KEEP CLEAR OF THE ENGINE'S MOVING PARTS.
Start the engine.
Turn on all accessories, manually set engine speed to 1600 RPM.
With DRBIII , read Target Charging and Charging voltage.
Compare the two readings.
Is there more than a 1.0 volt difference?
Yes → Go To 19
No
ACTION
→ Repair the open Generator Field Driver Circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Replace the Powertrain Control Module.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
→ Go To 18
→ Test Complete.
→ Go To 19
Continued
24
APPLICABILITY
All
All
All
All
All