P0135 CADILLAC HO2S Heater Performance Bank 1 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Tech description The…

P0203 CADILLAC Injector 3 Control Circuit

Possible causes – Faulty fuel injector 3– Fuel Injector 3 harness is open or shorted– Fuel injector 3 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #3, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0204 CADILLAC Injector 4 Control Circuit

Possible causes – Faulty fuel injector 4– Fuel Injector 4 harness is open or shorted– Fuel injector 4 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #4, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0205 CADILLAC Injector 5 Control Circuit

Possible causes – Faulty fuel injector 5– Fuel Injector 5 harness is open or shorted– Fuel injector 5 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #5, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0206 CADILLAC Injector 6 Control Circuit

Possible causes – Faulty fuel injector 6– Fuel Injector 6 harness is open or shorted– Fuel injector 6 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #6, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0207 CADILLAC Injector 7 Control Circuit

Possible causes – Faulty fuel injector 7– Fuel Injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #7, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0208 CADILLAC Injector 8 Control Circuit

Possible causes – Faulty fuel injector 8– Fuel Injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #8, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0200 CADILLAC Injector Circuit Malfunction

Possible causes – Faulty fuel injector– Fuel Injector harness is open or shorted– Fuel injector circuit poor electrical connection When is the obd code mean? If the Powertrain Control Module (PCM) detects an incorrect voltage for the commanded state of the driver, a fuel injector control code will set. Symptoms – Engine Light ON (or…

P0656 CADILLAC Fuel Level Output Circuit Malfunction

Possible causes – Faulty Fuel Level Gauge– Fuel Level Gauge harness is open or shorted– Fuel Level Gauge circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? If the fault detection circuit senses a voltage other than what the PCM expects, the fault line status changes causing the P0656…

P0462 CADILLAC Fuel Level Sensor Circuit Low Input

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection Tech description Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If the problem persist it may be necessary to…