P0024 BMW B Camshaft Position Timing Over-Advanced or System Performance Bank 2

Possible causes – Failed Camshaft Actuator– Variable Camshaft Timing harness open or shorted– Variable Camshaft Timing circuit poor electrical connection– Engine mechanical problems Tech description Although the service manual suggest that there is a problem with the Camshaft Position Sensor, usually replacing the VANOS seal kit takes care of the problem. Symptoms – Engine Light…

P0023 BMW Variable Camshaft Timing B Circuit Continuity Bank 2

Possible causes – Failed Camshaft Actuator– Variable Camshaft Timing harness open or shorted– Variable Camshaft Timing circuit poor electrical connection– Engine mechanical problems Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of power– Engine rough idle P0023 BMW OBD Code Description Variable Camshaft Timing ‘B’ (VANOS) Circuit Continuity

P0597 BMW Thermostat Heater Control Circuit Open

Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. When is the obd code mean? The P0597 is triggered when there is an open or short…

P0598 BMW Thermostat Heater Control Circuit Low

Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. When is the obd code mean? The P0598 is triggered when there is an open or short…

P0599 BMW Thermostat Heater Control Circuit High

Possible causes – Failed Engine Cooling Thermostat– Engine Cooling Thermostat harness is open or shorted– Engine Cooling Thermostat circuit poor electrical connection Tech description If there are not coolant system leaks, replaced the thermostat to fix the problem. When is the obd code mean? The P0598 is triggered when there is an open or short…

P0646 BMW Air Conditioning Clutch Relay Circuit Low

Possible causes – Faulty Air Conditioning Clutch Relay– Air Conditioning Clutch Relay harness is open or shorted– Air Conditioning Clutch Relay circuit poor electrical connection When is the obd code mean? Code P0646 may be stored if an open or short exists in A/C clutch relay control circuit. Symptoms – Engine Light ON (or Service…

P0274 BMW Fuel Injector Cylinder 5 Activation

Possible causes – Dirty Fuel Injector 5– Faulty Fuel Injector 5– Plugged Fuel Injector 5– Fuel injector 5 harness is open or shorted– Fuel injector 5 circuit poor electrical connection Tech description Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector. When is the…

P1000 BMW Secondary AIR Delivery

Possible causes – AIR diverter system fault– AIR plumbing fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1000 BMW OBD Code Description Faulty AIR Pump

P0620 BMW Generator Control Circuit Malfunction

Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM When is the obd code mean? The Engine Control Module (ECM) has fault detection circuitry which monitors the state of the generator turn on signal circuit. If the fault…