Dodge ZB 2005 Service Manual page 1181

DRIVEABILITY - GAS
P0132-O2 SENSOR 1/1 CIRCUIT VOLTAGE TOO HIGH —
O2 SENSOR HEATER GROUND CIRCUIT OPEN
PCM
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Start the engine.
Allow the engine to idle for 4 to 5 minutes.
With the DRBIII , read the O2 Sensor voltage.
Is the voltage above 1.5 volts?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-
No
2 WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Start the engine.
With the DRBIII , monitor the O2 Sensor voltage.
Is the O2 Sensor voltage below 1.5 volts?
Yes → Replace the O2 Sensor.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the PCM harness connectors.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, probe the O2 Sensor Signal circuit at
the O2 Sensor harness connector.
Does the test light illuminate brightly?
Yes → Repair the short to voltage in the O2 Sensor Signal circuit.
→ Go To 4
No
4 Turn the ignition off.
Measure the resistance of the O2 Sensor Signal circuit from the O2 Sensor harness
connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the O2 Sensor Signal circuit.
No
POSSIBLE CAUSES
ACTION
tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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Continued
APPLICABILITY
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