BMW Cars 1999-06

4.8L V8 - Auto 7

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Trouble Code: P1129



Engine Oil Level Sensor Signal Oil Level Too Low

Possible Causes:



Top off the oil
 

Trouble Code: P1130



Long Term Fuel Trim at Lean Limit

Possible Causes:



Air intake system leaking, vacuum hoses leaking or damaged
 
Air leaks located after the MAF sensor mounting location
 
EGR valve sticking, EGR diaphragm leaking, or gasket leaking
 
EVAP vapor recovery system has failed
 
Excessive fuel pressure, leaking or contaminated fuel injectors
 
Exhaust leaks before or near the HO2S(s) mounting location
 
Fuel pressure regulator is leaking or damaged
 
HO2S circuits wet or oily, corroded, or poor terminal contact
 
HO2S is damaged or it has failed
 
HO2S signal circuit open, shorted to ground, shorted to power
 
Low fuel pressure or vehicle driven until it was out of fuel
 
Oil dipstick not seated or engine oil level too high (overfilled)
 

Trouble Code: P1197



Differential Pressure Sensor Intake Manifold High Input (Bank 1)

Possible Causes:



Sensor-s voltage supply on Terminal 87
 
Sensor-s ground connection faulty
 
Signal wire to DME faulty
 
Replace sensor
 

Trouble Code: P1198



Differential Pressure Sensor Intake Manifold Low Input (Bank 1)

Possible Causes:



Sensor-s voltage supply on Terminal 87
 
Sensor-s ground connection faulty
 
Signal wire to DME faulty
 
Replace sensor
 

Trouble Code: P1199



Differential Pressure Sensor Intake Manifold Pressure Plausibility (Bank 1)

Possible Causes:



Sensor-s voltage supply on Terminal 87
 
Sensor-s ground connection faulty
 
Signal wire to DME faulty
 
Replace sensor
 

Trouble Code: P1327



Knock Sensor 2 Signal Low Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1328



Knock Sensor 2 Signal High Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1329



Knock Sensor 3 Signal Low Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1330



Knock Sensor 3 Signal High Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1332



Knock Sensor 4 Signal Low Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1333



Knock Sensor 4 Signal High Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1342



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P1344



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P1346



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P1348



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P1350



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P1377



Camshaft Position Sensor Master Camshaft Not Defined

Possible Causes:



CMP sensor circuit is open or shorted to ground
 
CMP sensor circuit is shorted to power
 
CMP sensor ground (return) circuit is open
 
CMP sensor installation incorrect (Hall-effect type)
 
CMP sensor is damaged or CMP sensor shielding damaged
 

Trouble Code: P1381



Control Module Self-Test, Knock Control Offset (Bank 1)

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1382



Control Module Self-Test, Knock Control Test Pulse (Bank 1)

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1386



Control Module Self-Test, Knock Control Circuit Baseline Test (Bank 1)

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P1396



Camshaft Position Sensor -A- Circ Malfunction

Possible Causes:



CMP sensor circuit is open or shorted to ground
 
CMP sensor circuit is shorted to power
 
CMP sensor ground (return) circuit is open
 
CMP sensor installation incorrect (Hall-effect type)
 
CMP sensor is damaged or CMP sensor shielding damaged
 

Trouble Code: P1413



Secondary Air Injector Pump Relay Control Circuit Signal Low

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 

Trouble Code: P1414



Secondary Air Injector Pump Relay Control Circuit Signal High

Possible Causes:



Connector to the secondary air injection valve is loose or disconnected
 
Secondary air injector valve circuit short
 
Secondary air injector valve circuit is open
 
Faulty secondary air injector valve
 

Trouble Code: P1512



Differentiated Intake Manifold Control Circuit Signal Low

Possible Causes:



Leaky vacuum reservoir, vacuum lines loose or damaged
 
Vacuum solenoid or vacuum actuator is damaged
 
IMRC actuator cable/gears are seized, or the cables are improperly routed or seized
 
IMRC housing return springs are damaged or disconnected
 
Lever/shaft return stop may be obstructed or bent, or the lever/shaft wide open stop may be obstructed or bent, or the IMRC lever/shaft may be sticking, binding or disconnected
 
IMRC control circuit open, shorted or the VPWR circuit is open
 

Trouble Code: P1513



Differentiated Intake Manifold Control Circuit Signal High

Possible Causes:



Leaky vacuum reservoir, vacuum lines loose or damaged
 
Vacuum solenoid or vacuum actuator is damaged
 
IMRC actuator cable/gears are seized, or the cables are improperly routed or seized
 
IMRC housing return springs are damaged or disconnected
 
Lever/shaft return stop may be obstructed or bent, or the lever/shaft wide open stop may be obstructed or bent, or the IMRC lever/shaft may be sticking, binding or disconnected
 
IMRC control circuit open, shorted or the VPWR circuit is open
 

Trouble Code: P1515



Engine Off Timer Plausibility

Possible Causes:



Check the CAN bus
 
Check instrument cluster/power module/Can Signal if no other CAN faults are detected
 

Trouble Code: P1517



Rough Road Detection, No Wheel Speed Signal

Possible Causes:



Possible failure of wheel speed sensor on drive axle
 

Trouble Code: P1518



Rough Road Detection, Wheel Speed Too High

Possible Causes:



Possible failure of wheel speed sensor on drive axle
 

Trouble Code: P1520



Engine Oil Quality Sensor Level Measurement Error

Possible Causes:



Replace the oil temperature sensor
 
Check BSD wire, voltage supply and oil level sensor ground for an open circuit. If okay, replace the oil level sensor.
 

Trouble Code: P1521



Engine Oil Quality Sensor Communication Error

Possible Causes:



Replace the oil temperature sensor
 
Check BSD wire, voltage supply and oil level sensor ground for an open circuit. If okay, replace the oil level sensor.
 

Trouble Code: P1535



Differentiated Intake Manifold Coil Temperature Limit Value Exceeded

Possible Causes:



Faulty controller
 
Faulty coil
 

Trouble Code: P1536



Differentiated Intake Manifold Controller Monitoring, Control Deviation

Possible Causes:



Faulty controller
 

Trouble Code: P1537



Differentiated Intake Manifold Potentiometer Voltage in Lower Diagnosis Range

Possible Causes:



Faulty potentiometer
 

Trouble Code: P1538



Differentiated Intake Manifold Potentiometer Voltage in Upper Diagnosis Range

Possible Causes:



Faulty potentiometer
 

Trouble Code: P1539



Differentiated Intake Manifold Coil Temperature Threshold Exceeded

Possible Causes:



Faulty controller
 
Faulty coil
 

Trouble Code: P1551



Engine Off Timer Timeout

Possible Causes:



Check the CAN bus
 
Check instrument cluster/power module/Can Signal
 

Trouble Code: P1614



Serial Communication Link ACC Malfunction

Possible Causes:



Circuit from the MIL to the DME
 
ECU Failure, BUS system failure
 
Circuit from the EPC to the DME
 

Trouble Code: P1628



Throttle Valve Adaptation Spring Test Malfunction During Opening (Bank 1)

Possible Causes:



Plate is sticking
 
Defective return spring
 
DVE electrical activation defective
 
DVE motor wiring may have shorted
 
Throttle valve is contaminated with foreign objects
 

Trouble Code: P1629



Throttle Valve Adaptation Spring Test Stop, Spring Does Not Open (Bank 1)

Possible Causes:



Plate is sticking
 
Defective return spring
 
DVE electrical activation defective.
 
DVE motor wiring may have shorted
 
Throttle valve is contaminated with foreign objects
 

Trouble Code: P1631



Throttle Valve Adaptation Spring Test (Bank 1)

Possible Causes:



Plate is sticking
 
Defective return spring
 
DVE electrical activation defective.
 
Throttle position sensor wiring may have shorted
 
Throttle valve is contaminated with foreign objects
 

 
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