PCM/ECM sets DTC P0132 if the HO2S(B1S1) voltage remains excessively high for a predetermined time.
The control unit of the linear oxygen sensor built inside the PCM/ECM monitors short circuit error on all front Heated Oxygen Sensor (HO2S) control lines (VRC, VIP, VG, VN) and PCM/ECM sets P0132 with short circuit to battery.If same code is set again in the next driving cycle, MIL is illuminated.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage range check | 1. Short to Battery in signal harness 2. Poor connection or damaged harness 3. Faulty Heated O2 Sensor(HO2S) |
Enable Conditions |
•
10V < Battery voltage < 16V | |
Threshold Value |
•
Sensor Voltage >1.2V | |
Diagnostic Time |
•
1 Seconds | |
Mil On Condition |
•
2 Driving Cycles |
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical check | 1. Short to Battery in signal harness 2. Poor connection or damaged harness 3. Faulty Heated O2 Sensor(HO2S) |
Enable Conditions |
•
10V < Battery voltage < 16V
•
Ignition key On | |
Threshold Value |
•
Error bit information from HW circuit | |
Diagnostic Time |
•
0.5 Seconds | |
Mil On Condition |
•
2 Driving Cycles |
