Vin 01 Jul, 2011 3:26 pm
P0135 - GM Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
HO2S- Heater Circuit Conditions
Location Bank 1 Sensor 1
Cause
No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, ECT and IAT sensor inputs less than 95°F and within 11°F of each other at startup, average MAF sensor airflow for sample period less than 20 g/sec, system voltage from 8-18v, then the PCM detected that the HO2S-11 signal remained within 150 mv of bias voltage (450 mv) for over 30-90 seconds (actual time is from 42 seconds up to 2 minutes).
P0130 - GM Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
HO2S Circuit Conditions Engine running, ECT input more than 167°F and the PCM detected that the HO2S-11 signal was fixed between 400-550 mv, or the signal was always less than 55 mv or always more than 400 mv.
Location Bank 1 Sensor 1
Cause
DTC P0107, P0108, P0117, P0118, P0122, P0123, P0131, P0132, P0134, P0201, P0202, P0203, P0204, P0300, P0325, P0336, P0440, P0442, P0446, P0502, P0601, P0602, P1441 and P1621 not set, engine runtime over 3 minutes, engine speed 1200-3400 rpm, throttle position 10-40%, ECT input more than 149°F, all conditions met for two seconds, then the PCM detected the engine was not in closed loop for 5 seconds of the 125 seconds test.
P0170 - Generic Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
Fuel Trim
Location Bank 1
P0030 - GM Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
HO2S Healer Control Circuit Conditions
Location Bank 1 Sensor 1
Cause
Key on or engine running, system voltage from 8-18v, then the PCM detected an incorrect circuit condition on the high side driver circuit for the HO2S-11.
P0140 - GM Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
HO2S Circuit Open/Inactive Conditions
Location Bank 1 Sensor 2
Cause
No Engine Sensor or Misfire codes set, engine runtime 1 minute, ECT input above 140°F, in closed loop A/F ratio at 14.7:1, throttle angle off idle over 6.5%, then the PCM detected that the HO2S-12 signal remained from 391-491 mv, condition met for 90 seconds
P0134 - GM Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description
HO2S Circuit Open/Inactive Conditions
Location Bank 1 Sensor 1
Cause
No Engine Sensor or Misfire codes set, engine runtime 1 minute, ECT input above 140°F, in closed loop A/F ratio at 14.7:1, throttle angle off idle over 6.5%, then the PCM detected that the HO2S-11 signal remained from 391-491 mv, condition met for 90 seconds.
P0500 - GM Type Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description
Vehicle Speed Sensor Circuit Performance Conditions
Cause
Engine speed at 1400-4000 rpm, MAP sensor input less than 0.5v (23 kPa or 3 psi) for over 5 seconds, gear selector not in Park or Neutral on A/T models, then the PCM did not receive any VSS signals. The resistance of the VSS is 800-1600 ohms. iVote: The PCM will calculate the vehicle speed using engine speed and MAP sensor signals, but the speedometer will not work.