Hello,
I suggest to still have the vehicle scanned for codes in other control modules, especially the ABS module
A fault with the mixture control could set the traction control light
P0132 - HO2S Circuit High Voltage Sensor 1
The ECM detects that the heated Oxygen Sensor (HO2S) voltage is greater than 1 050 mV for greater than 10 s.
Ignition OFF, disconnect the scan tool and wait 60 s to ensure all modules are powered down.
Disconnect the Heated Oxygen Sensor 1
Measure for less than 5 ohm resistance between Heated Oxygen Sensor 1 low signal circuit terminal 3 and ground.
If more than the specified range, test the appropriate Heated Oxygen Sensor 1 low signal circuit for an open/high resistance. If the circuit tests normal, consider a possible issue with the Engine Control Module.
Ignition ON, test for 1.5-2.1 V between the Heated Oxygen Sensor 1 signal circuit terminal 4 and ground.
If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, consider a possible issue with the Engine Control Module.
If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, consider a possible issue with the Engine Control Module.
Install a 3 A fused bridging wire between the Heated Oxygen Sensor 1 signal circuit terminal 4 and the low reference circuit terminal 3 of the appropriate Heated Oxygen Sensor 1. Engine running, verify the scan tool HO2S 1 parameter is less than 60 mV.
If greater than the specified value, consider a possible issue with the Engine Control Module.
Verify none of the following conditions exist:
Water intrusion in the HO2S harness connector
Low or high fuel system pressure
Fuel that is contaminated
Fuel saturation of the evaporative emission (EVAP) canister
Exhaust leaks near the HO2S
Engine vacuum leaks
If you find any of the above conditions, repair as necessary.
If all circuits test normal, replace the Heated Oxygen Sensor 1
How to test wiring:
https://www.2carpros.com/articles/how-to-check-wiring
See image below for wiring information. The wiring colors could also be black/green.
Cheers, Boris
Image (Click to make bigger)
Thursday, February 6th, 2025 AT 8:07 AM