Category: OBDii Powertrain Codes

P1280 Accelerator Pedal Position (APP) Sensor 2 Circuit Technical Service Bulletins for P1280 code

P1274 Cylinder #4 High To Low Side Open Possible causes Air fuel ratio (A/F) sensor 1 Air fuel ratio (A/F) sensor 1 heater Fuel pressure Fuel injector What about the obd code? The output voltage computed by ECM from the A/F sensor 1 (Bank 1) signal is shifted to the rich side for a specified…

P1268 Cylinder #8 High To Low Side Short Possible causes – Fuel injector No. 8 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1268 Description Indicates a low voltage condition exists at the injector output of the…

P1269 Immobilizer Code Not Programmed Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1270 Engine RPM Or Speed Limiter Reached Possible causes – Wheel slippage (water, ice, mud and snow)– Excessive engine RPM in neutral– Vehicle drive at a high rate of speed Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1270 Description Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated in a…

P1271 Cylinder #1 High To Low Side Open Possible causes Harness or connectors (The A/F sensor 1 circuit is open or shorted.) Air fuel ratio (A/F) sensor 1 What about the obd code? The A/F signal computed by ECM from the A/F sensor 1 (Bank 1) signal is constantly approx. 0V. Symptoms – Engine Light…

P1272 Cylinder #2 High To Low Side Open Possible causes Harness or connectors (The A/F sensor 1 circuit is open or shorted.) Air fuel ratio (A/F) sensor 1 What about the obd code? The A/F signal computed by ECM from the A/F sensor 1 (Bank 1) signal is constantly approx. 5V. Symptoms – Engine Light…

P1273 Cylinder #3 High To Low Side Open Possible causes – Shorted injector circuit – Faulty fuel injector – Faulty fuel injector interface module Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1273 Description A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit

P1260 Last Test Failed Failed SCC ENTER Possible causes Previous theft condition. Anti-theft system failure Tech description Theft indicator flashing rapidly or on solid when ignition switch is in the ON position. Check anti-theft system for DTCs. Typical vehicle symptoms are: start/stall or crank/no start. NOTE: No crank symptom only on vehicles equipped with PATS…

P1261 Cylinder #1 High To Low Side Short Possible causes – Fuel injector No. 1 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1261 Description Indicates a low voltage condition exists at the injector output of the…

P1262 Cylinder #2 High To Low Side Short Possible causes – Fuel injector No. 2 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1262 Description Indicates a low voltage condition exists at the injector output of the…

P1263 Cylinder #3 High To Low Side Short Possible causes – Fuel injector No. 3 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1263 Description Indicates a low voltage condition exists at the injector output of the…

P1264 Cylinder #4 High To Low Side Short Possible causes – Fuel injector No. 4 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1264 Description Indicates a low voltage condition exists at the injector output of the…

P1265 Cylinder #5 High To Low Side Short Possible causes – Fuel injector No. 5 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1265 Description Indicates a low voltage condition exists at the injector output of the…

P1266 Cylinder #6 High To Low Side Short Possible causes – Fuel injector No. 6 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1266 Description Indicates a low voltage condition exists at the injector output of the…

P1267 Cylinder #7 High To Low Side Short Possible causes – Fuel injector No. 7 output circuit open or short to ground. – Injector. – Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1267 Description Indicates a low voltage condition exists at the injector output of the…

P1259 VTEC System Malfunction Possible causes – Low engine oil pressure or level– Open or short circuit condition– Faulty VTEC oil pressure switch– Faulty VTEC solenoid What about the obd code? The P1259 is set when there is a problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit Symptoms – Engine…

P1253 VTEC System Malfunction Possible causes – Engine oil level low– Low engine oil pressure– Blocked oil passage– Faulty VCT oil control valve Tech description If the P1253 is present, start by checking the engine oil level and condition. Change engine oil and filter if necessary with factory recommended oil weight. Symptoms – Engine Light…

P1254 Pedal Correlation PDS2 and LPDS High Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1255 Pedal Correlation PDS2 and LPDS Low Symptoms – Engine Light ON (or Service Engine Soon Warning Light)