P0135

Test 1 - 4:

Test 5:

SYMPTOM
P0135-O2 SENSOR 1/1 HEATER PERFORMANCE

WHEN MONITORED
During vehicle shutdown after vehicle had been driven greater than 10 miles with throttle open for a minimum of 3 minutes. Battery voltage greater than 11.0 volts.

SET CONDITION
No sensor output is received when the PCM powers up the sensor heater. Two trip fault

POSSIBLE CAUSES
- O2 sensor heater operation
- O2 heater element
- O2 heater control circuit open
- O2 heater ground circuit open
- PCM