P1140 BUICK HO2S Transition Time Ratio Bank 1 Sensor 2

Possible causes – Faulty HO2S Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0351 BUICK Ignition Coil 1 Control Circuit

Possible causes – Faulty Ignition Coil 1– Ignition Coil 1 harness is open or shorted– Ignition Coil 1 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? Each ignition circuit is continuously monitored by the Powertrain Control Module (PCM). The test fails when the PCM does not receive a…

P0352 BUICK Ignition Coil 2 Control Circuit

Possible causes – Faulty Ignition Coil 2– Ignition Coil 2 harness is open or shorted– Ignition Coil 2 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? Each ignition circuit is continuously monitored by the Powertrain Control Module (PCM). The test fails when the PCM does not receive a…

P0353 BUICK Ignition Coil 3 Control Circuit

Possible causes – Faulty Ignition Coil 3– Ignition Coil 3 harness is open or shorted– Ignition Coil 3 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? Each ignition circuit is continuously monitored by the Powertrain Control Module (PCM). The test fails when the PCM does not receive a…

P0354 BUICK Ignition Coil 4 Control Circuit

Possible causes – Faulty Ignition Coil 4– Ignition Coil 4 harness is open or shorted– Ignition Coil 4 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? Each ignition circuit is continuously monitored by the Powertrain Control Module (PCM). The test fails when the PCM does not receive a…

P1133 BUICK HO2S Insufficient Switching Bank 1 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1– Vacuum leak– Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted– Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection When is the obd code mean? If the Powertrain Control Module (PCM) determines that…

P1153 BUICK HO2S Insufficient Switching Bank 2 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection When is the obd code mean? A DTC P1153 sets when the Powertrain Control Module (PCM) determines that…

P1031 BUICK HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor Bank 1 or 2– Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 or 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1031 BUICK OBD Code Description Heated Oxygen Sensor (HO2S)