BMW Cars 1999-06

4.8L V8 - Auto 4

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Trouble Code: P0460



Fuel Level Sensor -A- Circuit Malfunction

Possible Causes:



FPRC solenoid valve harness circuits are open or shorted
 
FPRC input port or output port vacuum lines are damaged
 
FRPC solenoid is damaged
 
Fuel level is too low
 
Check fuel level sensor
 

Trouble Code: P0461



Fuel Level Sensor -A- Circuit Range/Performance

Possible Causes:



FPRC solenoid valve harness circuits are open or shorted
 
FPRC input port or output port vacuum lines are damaged
 
FRPC solenoid is damaged
 
Fuel level is too low
 
Check fuel level sensor
 

Trouble Code: P0477



Exhaust Pressure Control Valve Low

Possible Causes:



EVAP power supply circuit is open
 
EVAP solenoid control circuit is open or shorted to ground
 
EVAP solenoid control circuit is shorted to power (B+)
 
EVAP solenoid valve is damaged or it has failed
 
EVAP canister has a leak or a poor seal
 
Check wiring harness, otherwise replace DME
 

Trouble Code: P0478



Exhaust Pressure Control Valve High

Possible Causes:



EVAP power supply circuit is open
 
EVAP solenoid control circuit is open or shorted to ground
 
EVAP solenoid control circuit is shorted to power (B+)
 
EVAP solenoid valve is damaged or it has failed
 
EVAP canister has a leak or a poor seal
 
Check wiring harness, otherwise replace DME
 

Trouble Code: P0479



Exhaust Pressure Control Valve Intermittent

Possible Causes:



EVAP power supply circuit is open
 
EVAP solenoid control circuit is open or shorted to ground
 
EVAP solenoid control circuit is shorted to power (B+)
 
EVAP solenoid valve is damaged or it has failed
 
EVAP canister has a leak or a poor seal
 
Check wiring harness, otherwise replace DME
 

Trouble Code: P0491



Secondary Air Injection System Insufficient Flow (Bank 1)

Possible Causes:



Air pump output is blocked or restricted
 
AIR bypass solenoid is leaking or it is restricted
 
AIR bypass solenoid is stuck open or stuck closed
 
Check valve (one or more) is damaged or leaking
 
Electric air injection pump hose(s) leaking
 
Electric air injection pump is damaged or faulty
 

Trouble Code: P0492



Secondary Air Injection System Insufficient Flow (Bank 2)

Possible Causes:



Air pump output is blocked or restricted
 
AIR bypass solenoid is leaking or it is restricted
 
AIR bypass solenoid is stuck open or stuck closed
 
Check valve (one or more) is damaged or leaking
 
Electric air injection pump hose(s) leaking
 
Electric air injection pump is damaged or faulty
 

Trouble Code: P0500



Vehicle Speed Sensor -A- Malfunction

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS harness circuit is shorted to ground
 
VSS harness circuit is shorted to power
 
VSS circuit open between the DME and related control module
 
VSS or wheel speed sensors circuits are damaged
 
Modules connected to VSC/VSS harness circuits are damaged
 
Mechanical drive mechanism for the VSS is damaged
 

Trouble Code: P0501



Vehicle Speed Sensor or PSOM Range/Performance

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS harness circuit is shorted to ground
 
VSS harness circuit is shorted to power
 
VSS circuit open between the DME and related control module
 
VSS or wheel speed sensors circuits are damaged
 
Modules connected to VSC/VSS harness circuits are damaged
 
Mechanical drive mechanism for the VSS is damaged
 

Trouble Code: P0503



Vehicle Speed Sensor -A- Intermittent/Erratic/High

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS harness circuit is shorted to ground
 
VSS harness circuit is shorted to power
 
VSS circuit open between the DME and related control module
 
VSS or wheel speed sensors circuits are damaged
 
Modules connected to VSC/VSS harness circuits are damaged
 
Mechanical drive mechanism for the VSS is damaged
 

Trouble Code: P0505



Idle Air Control Valve Malfunction

Possible Causes:



Charge air system leaks
 
Recirculating valve for turbocharger is faulty
 
Turbocharging system is damaged
 
Vacuum diaphragm for turbocharger needs adjusting
 
Wastegate bypass regulator valve is faulty
 

Trouble Code: P0506



Idle Air Control System RPM Lower Than Expected

Possible Causes:



Air inlet is plugged or the air filter element is severely clogged
 
IAC circuit is open or shorted
 
IAC circuit VPWR circuit is open
 
IAC solenoid is damaged or has failed
 
The VSS has failed
 

Trouble Code: P0507



Idle Air Control System RPM Higher Than Expected

Possible Causes:



Air intake leak located somewhere after the throttle body
 
IAC control circuit is shorted to chassis ground
 
IAC solenoid is damaged or has failed
 
Throttle Valve Control module has failed or is clogged with carbon
 
The VSS has failed
 

Trouble Code: P0512



Starter Request Circuit Malfunction

Possible Causes:



Check the starter and starter relay.
 
The DME has failed
 

Trouble Code: P0520



Engine Oil Pressure Sensor/Switch Circuit Malfunction

Possible Causes:



Replace the oil pressure sensor
 
Check coolant
 

Trouble Code: P0530



A/C Refrigerant Pressure Sensor -A- Circuit Malfunction

Possible Causes:



The A/C Refrigerant Pressure Sensor -A- has failed.
 
The DME has failed
 

Trouble Code: P0532



A/C Refrigerant Pressure Sensor -A- Circuit Low

Possible Causes:



The A/C Refrigerant Pressure Sensor -A- has failed.
 
The DME has failed
 

Trouble Code: P0533



A/C Refrigerant Pressure Sensor -A- Circuit High

Possible Causes:



The A/C Refrigerant Pressure Sensor -A- has failed.
 
The DME has failed
 

Trouble Code: P0560



System Voltage Malfunction

Possible Causes:



Alternator damaged or faulty
 
Battery voltage low or insufficient
 
Fuses blown or circuits open
 
Battery connection to terminal not clean
 
Voltage regulator has failed
 

Trouble Code: P0561



System Voltage Unstable

Possible Causes:



Alternator damaged or faulty
 
Battery voltage low or insufficient
 
Fuses blown or circuits open
 
Battery connection to terminal not clean
 
Voltage regulator has failed
 

Trouble Code: P0562



System Voltage Low

Possible Causes:



Alternator damaged or faulty
 
Battery voltage low or insufficient
 
Fuses blown or circuits open
 
Battery connection to terminal not clean
 
Voltage regulator has failed
 

Trouble Code: P0563



System Voltage High

Possible Causes:



Alternator damaged or faulty
 
Battery voltage low or insufficient
 
Fuses blown or circuits open
 
Battery connection to terminal not clean
 
Voltage regulator has failed
 

Trouble Code: P0571



Cruise/Brake Switch (A) Circuit Malfunction

Possible Causes:



Brake light switch is faulty
 
Control circuit is shorted to chassis ground
 

Trouble Code: P0597



Thermostat Heater Control Circuit Open

Possible Causes:



Check for low coolant level or incorrect coolant mixture
 
DME detects a short circuit wiring in the ECT
 
CHT sensor is out-of-calibration or it has failed
 
ECT sensor is out-of-calibration or it has failed
 
Replace the thermostat
 

Trouble Code: P0598



Thermostat Heater Control Circuit Low

Possible Causes:



Check for low coolant level or incorrect coolant mixture
 
DME detects a short circuit wiring in the ECT
 
CHT sensor is out-of-calibration or it has failed
 
ECT sensor is out-of-calibration or it has failed
 
Replace the thermostat
 

Trouble Code: P0599



Thermostat Heater Control Circuit High

Possible Causes:



Check for low coolant level or incorrect coolant mixture
 
DME detects a short circuit wiring in the ECT
 
CHT sensor is out-of-calibration or it has failed
 
ECT sensor is out-of-calibration or it has failed
 
Replace the thermostat
 

Trouble Code: P0600



Serial Communication Link (Data BUS) Message Missing

Possible Causes:



CAN data bus wires have short circuited to each other
 

Trouble Code: P0601



Internal Control Module Memory Check Sum Error

Possible Causes:



Battery terminal corrosion, or loose battery connection
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement. Remember to check for Aftermarket Performance Products before replacing a DME.
 

Trouble Code: P0604



Internal Control Module Random Access Memory (RAM) Error

Possible Causes:



Battery terminal corrosion, or loose battery connection
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement. Remember to check for Aftermarket Performance Products before replacing a DME.
 

Trouble Code: P0620



Generator Control Circuit Error

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure
 

Trouble Code: P0704



Clutch Switch Input Circuit Malfunction

Possible Causes:



Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Solenoid valves in valve body are faulty
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
Engine Control Module (DME) is faulty
 
Voltage supply for Engine Control Module (DME) is faulty
 
Transmission Control Module (TCM) is faulty
 

Trouble Code: P0705



TR Sensor Circuit Malfunction

Possible Causes:



Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Solenoid valves in valve body are faulty
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
Engine Control Module (DME) is faulty
 
Voltage supply for Engine Control Module (DME) is faulty
 
Transmission Control Module (TCM) is faulty
 

Trouble Code: P0715



Input/Turbine Speed Sensor Circuit Malfunction

Possible Causes:



TVSS signal circuit is open
 
TVSS signal is shorted to chassis ground
 
TVSS signal is shorted to sensor ground
 
TVSS assembly is damaged or it has failed
 

Trouble Code: P0720



Output/Turbine Speed Sensor Circuit Malfunction

Possible Causes:



TVSS signal circuit is open
 
TVSS signal is shorted to chassis ground
 
TVSS signal is shorted to sensor ground
 
TVSS assembly is damaged or it has failed
 

Trouble Code: P0731



Incorrect First Gear Ratio

Possible Causes:



1st Gear solenoid harness connector not properly seated
 
1st Gear solenoid signal shorted to ground, or open
 
1st Gear solenoid wiring harness connector is damaged
 
1st Gear solenoid is damaged or not properly installed
 
ATF level is low
 
Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Transmission Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0732



Incorrect Second Gear Ratio

Possible Causes:



2nd Gear solenoid harness connector not properly seated
 
2nd Gear solenoid signal shorted to ground, or open
 
2nd Gear solenoid wring harness connector is damaged
 
2nd Gear solenoid is damaged or not properly installed
 
ATF level is low
 
Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Transmission Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0733



Incorrect Third Gear Ratio

Possible Causes:



3rd Gear solenoid harness connector not properly seated
 
3rd Gear solenoid signal shorted to ground, or open
 
3rd Gear solenoid wiring harness connector is damaged
 
3rd Gear solenoid is damaged or not properly installed
 
ATF level is low
 
Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Transmission Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0734



Incorrect Fourth Gear Ratio

Possible Causes:



4th Gear solenoid harness connector not properly seated
 
4th Gear solenoid signal shorted to ground, or open
 
4th Gear solenoid wiring harness connector is damaged
 
4th Gear solenoid is damaged or not properly installed
 
ATF level is low
 
Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Transmission Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0735



Incorrect Fifth Gear Ratio

Possible Causes:



5th Gear solenoid harness connector not properly seated
 
5th Gear solenoid signal shorted to ground, or open
 
5th Gear solenoid wiring harness connector is damaged
 
5th Gear solenoid is damaged or not properly installed
 
ATF level is low
 
Circuit harness connector contacts are corroded or ingresses of water
 
Circuit wires have shorted to each other, to battery or ground
 
Automatic Transmission Hydraulic Pressure Sensor 1 has failed
 
Transmission Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0743



TCC Solenoid Circuit Malfunction

Possible Causes:



TCC solenoid control circuit is open or shorted to ground
 
TCC solenoid wiring harness connector is damaged
 
TCC solenoid is damaged or has failed
 

 
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