2000 CHRYSLER VOYAGER check engine

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Page 67 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
3 Ignition Off
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?All
Ye s®Repair as necessary.
Perform Powertrain Verification Test

Page 69 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
4 Disconnect the 1/1 O2 Sensor Connector.
Check connectors - Clean / repair as necessary.
Is any terminal corroded, damaged, pushed out or miswired?All
Ye s®Repair or replac

Page 72 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual Symptom:
P-0138 1/2 O2 SENSOR SHORTED TO VOLTAGE
When Monitored and Set Condition:
P-0138 1/2 O2 SENSOR SHORTED TO VOLTAGE
When Monitored: With the engine running for more than 2 minutes and coolant
t

Page 73 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
4 If there are no potential causes remaining, the Downstream O2 Sensor is assumed to
be defective.
View repair options.All
Repair
Replace the Upstream O2 Sensor.
Perform Powe

Page 75 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
3 Turn Ignition On (Engine Off).
During the following voltage drop measurement, wiggle wires between O2S Connec-
tor and PCM Connector.
Using a voltmeter, backprobe O2S (Sign

Page 78 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
3 Ignition Off
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?All
Ye s®Repair as necessary.
Perform Powertrain Verification Test

Page 80 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
4 Disconnect the 1/2 O2 Sensor Connector.
Check connectors - Clean / repair as necessary.
Is any terminal corroded, damaged, pushed out or miswired?All
Ye s®Repair or replac

Page 84 of 364

CHRYSLER VOYAGER 2000  Diagnostic Manual TEST ACTION APPLICABILITY
11 Check for any of the following conditions/mechanical problems.
ENGINE VACUUM Ð must be at least 13 inches in neutral
ENGINE VALVE TIMING Ð must be within specifications