P0138 CADILLAC HO2S Circuit High Voltage Bank 1 Sensor 2

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure– Faulty fuel injectors Tech description Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes…

P2271 CADILLAC HO2S Signal Stuck Rich Bank 1 Sensor 2

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure– Faulty fuel injectors When is the obd code mean? The Powertrain Control Module (PCM) detected…

P0161 CADILLAC HO2S Heater Performance Bank 2 Sensor 2

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure – Faulty fuel injectors– Intake air leaks– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank 2 usually…

P0158 CADILLAC HO2S Circuit High Voltage Bank 2 Sensor 2

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure – Faulty fuel injectors– Intake air leaks– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank 2 usually…

P0159 CADILLAC HO2S22 slow response sensor

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the O2 Sensor 2 usually takes…

P1174 CADILLAC Fuel Trim Cylinder Balance Bank 1

Possible causes – Faulty Oxygen sensor– Ignition problem– Fuel injection problem– Engine mechanical condition Tech description There is a factory service bulletin for the following Cadillac models: 2000-2008 Cadillac Escalade2000-2008 Cadillac Escalade EXT2003-2008 Cadillac Escalade ESV2000-2008 Cadillac Factory Service Bulletin OBDII Code P1174 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1174…

P1175 CADILLAC Fuel Trim Cylinder Balance Bank 2

Possible causes – Faulty Oxygen sensor– Ignition problem– Fuel injection problem– Engine mechanical condition Tech description There is a factory service bulletin for the following Cadillac models: 2000-2008 Cadillac Escalade2000-2008 Cadillac Escalade EXT2003-2008 Cadillac Escalade ESV2000-2008 Cadillac Factory Service Bulletin OBDII Code P1175 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1175…

P0705 CADILLAC Transmission Range Sensor Circuit Malfunction

Possible causes – Faulty Park/Neutral Position Switch– Misadjusted Park/Neutral Position Switch– Park/Neutral Position Switch harness is open or shorted– Park/Neutral Position Switch circuit poor electrical connection When is the obd code mean? The transmission range switch detects the selector lever position and sends a signal to the Powertrain Control Module (PCM). Symptoms – Engine Light…

P0108 CADILLAC Manifold Absolute Pressure/Barometric Pressure Circuit High Input

Possible causes – Faulty Manifold Absolute Pressure sensor– Manifold Absolute Pressure harness is open or shorted– Manifold Absolute Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? An excessively high voltage from the sensor is sent to ECM Symptoms – Engine Light ON (or Service Engine Soon…