Chrysler PT Cruiser 2001 Service Manual Supplement page 2533

P0132-1/1 O2 SENSOR SHORTED TO VOLTAGE —
TEST
3 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Note: Ensure the ignition switch has been in the off position for at least 30
seconds.
Measure the resistance between the O2 Sensor Ground circuit and engine ground.
Is the resistance below 5.0 ohms?
→ Repair the O2 Sensor Ground circuit for an open.
No
Yes → Go To 4
4 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Start the engine and allow the engine to idle.
Measure the voltage of the O2 Sensor Signal circuit at the O2 Sensor harness
connector.
Is the voltage above 1.2 volts?
Yes → Repair the O2 Sensor Signal circuit for a short to voltage.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the O2 Sensor Signal circuit between the O2 Sensor
harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
→ Repair the O2 Sensor Signal circuit for an open.
No
Yes → Go To 6
6 If there are no possible causes remaining, view repair.
Repair
7 Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Perform a wiggle test on the related wiring harnesses with the engine running.
Watch for the Good Trip Counter to change to 0.
Were any problems found?
Yes → Repair wiring harness/connectors as necessary.
→ Test Complete.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace the PCM.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
Continued
73
APPLICABILITY
All
All
All
All
All