Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
P0030 or P0036
- The control module detects that the affected HO2S heater low control circuit is not within a specified range.
- DTCs P0030 and P0036 set when the above condition is met.
P0053 or P0054
- The control module detects that the affected HO2S heater low control circuit is not within a specified range at engine start-up.
- DTCs P0053 and P0054 set within one second when the above condition is met.
P0135
- The control module detects that the HO2S 1 heater current parameter is more than 3.125 amps or less than 0.25 amps.
- DTC P0135 sets within 2 seconds during the heater current test when the above condition is met.