Chrysler PT Cruiser 2001 Service Manual Supplement page 2667

Symptom:
*CHECKING THE PCM POWER AND GROUNDS
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
PCM GROUND CIRCUIT(S) OPEN
FUSED B(+) CIRCUIT OPEN
TEST
1 Turn the ignition off.
Disconnect the Powertrain Control Module harness connector.
Use a 12 volt test light in the following step.
With a 12 V test light connected to ground, probe the Fused B+ circuit in the PCM
harness connector.
Is the test light illuminated and bright?
→ Repair the Fused B+ circuit for an open
No
Yes → Go To 2
2 Turn the ignition off.
Disconnect the Powertrain Control Module harness connector.
Turn the ignition on.
Use a 12 volt test light in the following step.
With the 12V test light connected to ground, probe the Fused Ignition Switch Output
circuit in the PCM Connector.
Is the test light illuminated and bright?
Yes → Go To 3
→ Repair the Fused Ignition Switch Output circuit for an open.
No
3 Turn the ignition off.
Disconnect the Powertrain Control Module harness connector(s).
Use a 12 volt test light in the following step.
Connect 12V test light to B(+). Probe the Ground Circuits, one at a time, in the PCM
Connector.
Does the test light illuminate at each Ground circuit?
Yes → Test Complete.
→ Repair the ground circuit(s) for an open.
No
POSSIBLE CAUSES
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
DRIVEABILITY - GAS
207
APPLICABILITY
All
All
All