Chrysler PT Cruiser 2001 Service Manual Supplement page 2626

DRIVEABILITY - GAS
P1389-NO ASD RELAY OUTPUT VOLTAGE AT PCM —
TEST
4 Turn the ignition off.
Remove the ASD relay from the PDC.
Disconnect the PCM harness connector(s).
Measure the resistance of the ASD relay output circuit from the ASD Relay cavity in
PDC to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open ASD Relay output circuit.
No
5 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
Repair
6 Turn the ignition off.
Remove the ASD relay from the PDC.
Disconnect the PCM harness connector(s).
Measure the resistance of the ASD relay output circuit from the ASD Relay cavity in
PDC to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 7
→ Repair the open ASD Relay output circuit.
No
7 Turn the ignition off.
Remove the ASD relay from the PDC.
Measure both Fused B+ circuits at the ASD Relay cavity in PDC for voltage.
Is the voltage above 10.0 volts for both B(+) Circuits?
Yes → Go To 8
→ Repair the open fused B+ circuit. Note: Check fuse in the PDC.
No
8 Install a substitute relay for the Auto Shutdown Relay.
Attempt to start the vehicle.
Did the engine start?
Yes → Replace the ASD Relay.
→ Test Complete.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Replace the Powertrain Control Module.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
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Continued
APPLICABILITY
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