Volkswagen Cars 2000-05

2.0L L4 VIN B Auto 5

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Trouble Code: P0747



Pressure Control Solenoid "A" Performance or Stuck On

Possible Causes:



ATF level is low
 
Circuit harness connector contacts are corroded or ingressed 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 Control Module (TCM) needs replacing
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 

Trouble Code: P0748



Pressure Control Solenoid Electrical

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 
ECM has failed
 

Trouble Code: P0749



Pressure Control Solenoid -A- Intermittent

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 
ECM has failed
 

Trouble Code: P0751



Shift Solenoid "A" Performance or Stuck Off

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0752



A/T Shift Solenoid 1/A Function Range/Performance

Possible Causes:



SS1/A solenoid is stuck in the "on" position
 
SS1/A solenoid has a mechanical failure
 
SS1/A solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0753



A/T Shift Solenoid 1/A Circuit Malfunction

Possible Causes:



SS1/A solenoid control circuit is open
 
SS1/A solenoid control circuit is shorted to ground
 
SS1/A solenoid wiring harness connector is damaged
 
SS1/A solenoid is damaged or has failed
 
ECM has failed
 

Trouble Code: P0756



A/T Shift Solenoid 2/B Function Range/Performance

Possible Causes:



SS2/B solenoid is stuck in the "on" position
 
SS2/B solenoid has a mechanical failure
 
SS2/B solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0757



A/T Shift Solenoid 2/B Function Range/Performance

Possible Causes:



SS2/B solenoid is stuck in the "on" position
 
SS2/B solenoid has a mechanical failure
 
SS2/B solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0758



A/T Shift Solenoid 2/B Circuit Malfunction

Possible Causes:



Shift Solenoid 2/B connector is damaged, open or shorted
 
Shift Solenoid 2/B control circuit is open
 
Shift Solenoid 2/B control circuit is shorted to ground
 
Shift Solenoid 2/B is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0761



A/T Shift Solenoid 3/C Function Range/Performance

Possible Causes:



SS3/C solenoid may be stuck -off-
 
SS3/C solenoid has a mechanical failure
 
SS3/C solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0762



A/T Shift Solenoid 3/C Function Range/Performance

Possible Causes:



SS3/C solenoid may be stuck -on-
 
SS3/C solenoid has a mechanical failure
 
SS3/C solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0763



A/T Shift Solenoid 3/C Electrical

Possible Causes:



Shift Solenoid 3/C connector is damaged, open or shorted
 
Shift Solenoid 3/C control circuit is open
 
Shift Solenoid 3/C control circuit is shorted to ground
 
Shift Solenoid 3/C is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0766



A/T Shift Solenoid D Performance

Possible Causes:



Shift Solenoid D connector is damaged, open or shorted
 
Shift Solenoid D control circuit is open
 
Shift Solenoid D control circuit is shorted to ground
 
Shift Solenoid D is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0768



A/T Shift Solenoid 3/D Electrical

Possible Causes:



Shift Solenoid 3/D connector is damaged, open or shorted
 
Shift Solenoid 3/D control circuit is open
 
Shift Solenoid 3/D control circuit is shorted to ground
 
Shift Solenoid 3/D is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0771



A/T Shift Solenoid E Performance

Possible Causes:



Shift Solenoid D connector is damaged, open or shorted
 
Shift Solenoid D control circuit is open
 
Shift Solenoid D control circuit is shorted to ground
 
Shift Solenoid D is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0773



A/T Shift Solenoid E Electrical

Possible Causes:



Shift Solenoid connector is damaged, open or shorted
 
Shift Solenoid control circuit is open
 
Shift Solenoid control circuit is shorted to ground
 
Shift Solenoid is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0776



Pressure Control Solenoid "B" Performance or Stuck Off

Possible Causes:



SS3/C solenoid may be stuck -off-
 
SS3/C solenoid has a mechanical failure
 
SS3/C solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0777



Pressure Control Solenoid "B" Stuck On

Possible Causes:



SS3/C solenoid may be stuck -on-
 
SS3/C solenoid has a mechanical failure
 
SS3/C solenoid has a hydraulic failure
 
ECM has failed
 

Trouble Code: P0778



Pressure Control Solenoid "B" Electrical

Possible Causes:



Shift Solenoid connector is damaged, open or shorted
 
Shift Solenoid control circuit is open
 
Shift Solenoid control circuit is shorted to ground
 
Shift Solenoid is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0785



Shift/Timing Solenoid

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 
Mechanical malfunction in transmission
 

Trouble Code: P0796



Pressure Solenoid "C" Performance or Stuck Off

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0797



Pressure Solenoid "C" Performance or Stuck On

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0798



Pressure Solenoid "C" Electrical

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0811



Excessive Clutch Slippage

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0840



Transmission Fluid Pressure Sensor/Switch "A" Circuit

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
ECM has failed
 

Trouble Code: P0841



Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
ECM has failed
 

Trouble Code: P0845



Transmission Fluid Pressure Sensor/Switch "B" Circuit

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
ECM has failed
 

Trouble Code: P0846



Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/Performance

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
Transmission Input Speed (RPM) Sensor has failed
 
Transmission Output Speed (RPM) Sensor has failed
 
ECM has failed
 

Trouble Code: P0863



TCM Communication Circuit

Possible Causes:



ECM has failed
 
Terminal resistance for CAN-bus are faulty
 
Can data bus wires have short circuited to each other
 
TCM has failed
 

Trouble Code: P0864



TCM Communication Circuit Range/Performance

Possible Causes:



ECM has failed
 
Terminal resistance for CAN-bus are faulty
 
Can data bus wires have short circuited to each other
 
TCM has failed
 

Trouble Code: P0865



TCM Communication Circuit Low

Possible Causes:



ECM has failed
 
Terminal resistance for CAN-bus are faulty
 
Can data bus wires have short circuited to each other
 
TCM has failed
 

Trouble Code: P0884



TCM Power Input Signal Intermittent

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0886



TCM Power Relay Control Circuit Low

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0887



TCM Power Relay Control Circuit High

Possible Causes:



Solenoid valves in valve body are faulty
 

Trouble Code: P0889



TCM Power Relay Sense Circuit Range/Performance

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0890



TCM Power Relay Sense Circuit Low

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0891



TCM Power Relay Sense Circuit High

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P0892



TCM Power Relay Sense Circuit High

Possible Causes:



Solenoid valves in valve body are faulty
 
Solenoid circuit is shorting to ground
 
Solenoid circuit is open
 
TCM has failed or wiring is shorting
 
ECM has failed
 

Trouble Code: P1102



O2 Sensor Circuit (Bank 1-Sensor 1) Short to B+

Possible Causes:



Oxygen sensor (before catalytic converter) is faulty
 
Oxygen sensor (behind catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (behind catalytic converter) is faulty
 
Circuit wiring has a short to power or ground
 
Engine Component Power Supply Relay is faulty
 
E-box fuses for oxygen sensor are faulty
 
Leaks present in the exhaust manifold or exhaust pipes
 
HO2S signal wire and ground wire crossed in connector
 
HO2S element is fuel contaminated or has failed
 
ECM has failed
 

Trouble Code: P1103



O2 Sensor Circuit (Bank 1-Sensor 1) Output Too Low

Possible Causes:



Oxygen sensor (before catalytic converter) is faulty
 
Oxygen sensor (behind catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (behind catalytic converter) is faulty
 
Circuit wiring has a short to power or ground
 
Engine Component Power Supply Relay is faulty
 
E-box fuses for oxygen sensor are faulty
 
Leaks present in the exhaust manifold or exhaust pipes
 
HO2S signal wire and ground wire crossed in connector
 
HO2S element is fuel contaminated or has failed
 
ECM has failed
 

 
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