P1286 Volvo Air Fuel Ratio Sensor 1 Circuit High Voltage Detected Bank 2 Possible causes – Faulty air fuel ratio (A/F) sensor 1 heater Bank 2 – Air fuel ratio (A/F) harness is open or shorted– Air fuel ratio (A/F) circuit poor electrical connection What about the obd code? The A/F signal computed by ECM…
P1285 Volvo Cylinder head over temp sensed
P1285 Volvo Cylinder head over temp sensed Possible causes Low engine coolant level. Base engine concerns. Engine cooling system concerns. CHT sensor concern. Tech description On some applications when this fault occurs the Engine Temperature warning indicator will illuminate and/or force the temperature gauge to the full H (hot) zone. The warning indicator can be…
P1284 Volvo Air Fuel Ratio Sensor 1 Rich Shift Monitoring Bank 2
P1284 Volvo Air Fuel Ratio Sensor 1 Rich Shift Monitoring Bank 2 Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Faulty Air Flow Meter Tech description What about the obd code? The A/F…
P1283 Volvo Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 2
P1283 Volvo Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 2 Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 2 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 2 – Fuel pressure– Faulty Fuel injector – Intake air leaks– Faulty Air Flow Meter Tech description If one or more…
P1282 Volvo Air Fuel Ratio Sensor 1 Circuit No Activity Detected Bank 2
P1282 Volvo Air Fuel Ratio Sensor 1 Circuit No Activity Detected Bank 2 Possible causes – Faulty air fuel ratio (A/F) sensor 1 heater Bank 2 – Air fuel ratio (A/F) harness is open or shorted– Air fuel ratio (A/F) circuit poor electrical connection What about the obd code? The A/F signal computed by ECM…
P1281 Volvo Air Fuel Ratio Sensor 1 Circuit No Activity Detected Bank 2
P1281 Volvo Air Fuel Ratio Sensor 1 Circuit No Activity Detected Bank 2 Possible causes – Faulty air fuel ratio (A/F) sensor 1 heater Bank 2 – Air fuel ratio (A/F) harness is open or shorted– Air fuel ratio (A/F) circuit poor electrical connection What about the obd code? The A/F signal computed by ECM…
P1280 Volvo Accelerator Pedal Position (APP) Sensor 2 Circuit
P1280 Volvo Accelerator Pedal Position (APP) Sensor 2 Circuit Technical Service Bulletins for P1280 Volvo code Volvo Vehicle:Volvo C70,Volvo S40,Volvo XC90,Volvo XC70,Volvo XC60,Volvo V70,Volvo V50,Volvo V40,Volvo S90,Volvo S80,Volvo S60
P1279 Volvo Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 1
P1279 Volvo Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 1 Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 1– Air fuel ratio (A/F) sensor 1 heater Bank 1– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas leaks– PVC– Air…
P1278 Volvo Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 1
P1278 Volvo Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 1 Possible causes – Air fuel ratio (A/F) Harness or connectors is open or shorted– Air fuel ratio (A/F) sensor 1 Bank 1– Air fuel ratio (A/F) sensor 1 heater Bank 1– Fuel pressure– Fuel injector– Intake air leaks– Exhaust Gas leaks– PVC– Air…
P1277 Volvo Cylinder #7 High To Low Side Open
P1277 Volvo Cylinder #7 High To Low Side Open Possible causes Fuel injector No. 7 output circuit short to voltage. Injector. NG Module. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1277 Volvo Description Indicates a high voltage condition exists at the injector output of the NG module for cylinder No. 7…
P1276 Volvo Cylinder #6 High To Low Side Open
P1276 Volvo Cylinder #6 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. 1.5V. Symptoms – Engine…
P1275 Volvo Cylinder #5 High To Low Side Open
P1275 Volvo Cylinder #5 High To Low Side Open Possible causes Fuel injector No. 5 output circuit short to voltage. Injector. NG Module. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1275 Volvo Description Indicates a high voltage condition exists at the injector output of the NG module for cylinder No. 5…
P1274 Volvo Cylinder #4 High To Low Side Open
P1274 Volvo 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…
P1273 Volvo Cylinder #3 High To Low Side Open
P1273 Volvo 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 Volvo Description A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector…
P1272 Volvo Cylinder #2 High To Low Side Open
P1272 Volvo 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…
P1271 Volvo Cylinder #1 High To Low Side Open
P1271 Volvo 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…
P1270 Volvo Engine RPM Or Speed Limiter Reached
P1270 Volvo 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 Volvo Description Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated…
P1269 Volvo Immobilizer Code Not Programmed
P1269 Volvo Immobilizer Code Not Programmed Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Volvo Vehicle:Volvo C70,Volvo S40,Volvo XC90,Volvo XC70,Volvo XC60,Volvo V70,Volvo V50,Volvo V40,Volvo S90,Volvo S80,Volvo S60
P1268 Volvo Cylinder #8 High To Low Side Short
P1268 Volvo 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 Volvo Description Indicates a low voltage condition exists at the injector output…
P1267 Volvo Cylinder #7 High To Low Side Short
P1267 Volvo 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 Volvo Description Indicates a low voltage condition exists at the injector output…