Chrysler PT Cruiser 2001 Service Manual Supplement page 2483

P1682-CHARGING SYSTEM VOLTAGE LOW —
TEST
9 Turn ignition on, engine not running.
Measure voltage between the Generator B(+) Terminal and the Battery (+) Post.
Caution: Ensure all wires are clear of the engine's moving parts.
Start the engine.
Is the voltage above 0.4 volt?
Yes → Repair the B(+) Circuit for high resistance between the Generator
→ Go To 10
No
10 Start the engine.
Warm the engine to operating temperature.
Caution: Ensure all wires are clear of the engine's moving parts.
Measure voltage between the Generator case and Battery (-) Post.
Is the voltage above 0.1 volt?
Yes → Repair Generator Ground for high resistance, Generator Case to
→ Go To 11
No
11 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 12
→ Go To 12
No
12 Turn the ignition off.
Disconnect the PCM harness connector(s).
Disconnect the Generator Field harness connector.
Measure the Generator Field Driver Circuit from PCM Connector to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Generator Field Driver Circuit shorted to ground.
→ Go To 13
No
13 Turn the ignition off.
Remove the ASD Relay from the PDC.
Disconnect the generator field harness connector.
Note: Check Connectors - Clean/repair as necessary.
Measure the ASD Relay Output Circuit from ASD Relay cavity in PDC to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the ASD Relay Output Circuit shorted to ground.
→ Go To 14
No
ACTION
and Battery.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Battery (-) side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Continued
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CHARGING
APPLICABILITY
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