Mitsubishi Car 1999-05

3.5L V6 VIN P Auto

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3.5L V6 VIN P Auto

Trouble Code: P0173



Fuel Trim Fault (Bank 2)

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks located in front of the A/FS or HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS power circuit is open (check for power from MFI relay)
 
VSS ground circuit is open between sensor and chassis ground
 
VSS is damaged or has failed
 
PCM has failed (the PCM provides 5v on the VSS signal circuit)
 

Trouble Code: P0551



Power Steering Pressure Switch Circuit Malfunction

Possible Causes:



Power steering pressure switch signal circuit is open
 
Power steering pressure switch signal circuit shorted to ground
 
Power steering pressure switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0554



Power Steering Pressure Switch Circuit Intermittent

Possible Causes:



Power steering pressure switch circuit is shorted or open
 
Incorrect power steering fluid level or oil pump pressure
 
Power steering pressure switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0703



Transmission Brake Switch Signal

Possible Causes:



Brake switch signal circuit is open or shorted to ground
 
Brake switch power circuit is open (check power from the relay)
 
Brake switch is damaged or has failed
 
TCM has failed
 

Trouble Code: P705



Transmission Range Sensor Circuit Malfunction

Possible Causes:



P/N switch signal circuit is open or shorted to ground
 
P/N switch power circuit is open (check for power at MFI relay)
 
P/N switch is out-of-adjustment
 
P/N switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0712



Transmission Fluid Temperature Sensor Circuit Low Input

Possible Causes:



TFT sensor signal circuit is shorted to ground
 
TFT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0713



Transmission Fluid Temperature Sensor Circuit High Input

Possible Causes:



TFT sensor signal circuit is open between the sensor and PCM
 
TFT sensor ground circuit is open between sensor and PCM
 
TFT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0715



A/T Input/Turbine Speed Sensor Circuit Malfunction

Possible Causes:



Input speed sensor signal circuit is open or shorted to ground
 
Input speed sensor signal circuit is shorted to VREF or power
 
Input speed sensor is damaged or has failed
 
TCM has failed
 

Trouble Code: P0720



A/T Output Speed Sensor Circuit Malfunction

Possible Causes:



Output speed sensor signal circuit is open or shorted to ground
 
Output speed sensor signal circuit is shorted to VREF or power
 
Output speed sensor is damaged or has failed
 
TCM has failed
 

Trouble Code: P0731



A/T Incorrect First Gear Ratio

Possible Causes:



Solenoid or related pressure switch is damaged or has failed
 
Problems related to the Input Speed or Output Speed sensor
 
LR clutch is damaged, leaking or has failed
 
Problems related to the transmission valve body
 

Trouble Code: P0732



A/T Incorrect Second Gear Ratio

Possible Causes:



Solenoid or related pressure switch is damaged or has failed
 
Problems related to the Input Speed or Output Speed sensor
 
LR clutch is damaged, leaking or has failed
 
Problems related to the transmission valve body
 

Trouble Code: P0733



A/T Incorrect Third Gear Ratio

Possible Causes:



Solenoid or related pressure switch is damaged or has failed
 
Problems related to the Input Speed or Output Speed sensor
 
LR clutch is damaged, leaking or has failed
 
Problems related to the transmission valve body
 

Trouble Code: P0734



A/T Incorrect Fourth Gear Ratio

Possible Causes:



Solenoid or related pressure switch is damaged or has failed
 
LR clutch is damaged, leaking or has failed
 
Problems related to the Input Speed or Output Speed sensor
 
Problems related to the transmission valve body
 

Trouble Code: P0736



A/T Incorrect Reverse Gear Ratio

Possible Causes:



Reverse Gear is damaged or has failed
 
LR clutch is damaged, leaking or has failed
 
Problems related to the Input Speed or Output Speed sensor
 
Problems related to the transmission valve body
 

Trouble Code: P0741



A/T Torque Converter Clutch Performance (Stuck Off)

Possible Causes:



TCC solenoid has a mechanical failure (solenoid is stuck off)
 
TCC solenoid has a hydraulic failure
 
PCM has failed
 

Trouble Code: P0742



A/T Torque Converter Clutch Performance (Stuck On)

Possible Causes:



TCC solenoid has a mechanical failure (solenoid is stuck on)
 
TCC solenoid has a hydraulic failure
 
PCM has failed
 

Trouble Code: P0743



A/T Torque Converter Clutch Performance (Stuck On)

Possible Causes:



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

Trouble Code: P0753



A/T Shift Solenoid 'A' Circuit Malfunction

Possible Causes:



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

Trouble Code: P0758



A/T Shift Solenoid 'B' Circuit Malfunction

Possible Causes:



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

Trouble Code: P0763



A/T Shift Solenoid 'C' Circuit Malfunction

Possible Causes:



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

Trouble Code: P0768



A/T Shift Solenoid 'D' Circuit Malfunction

Possible Causes:



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

Trouble Code: P1101



Traction Control Vacuum Solenoid Circuit Malfunction

Possible Causes:



T/C vacuum solenoid circuit is open or shorted to ground
 
T/C vacuum solenoid circuit is shorted to system power (B+)
 
T/C vacuum solenoid circuit is damaged or has failed
 
PCM has failed
 
TSB 2-13-002 (2/02) contains information related to this code
 

Trouble Code: P1102



Traction Control Ventilation Solenoid Circuit Malfunction

Possible Causes:



T/C ventilation solenoid circuit is open or shorted to ground
 
T/C ventilation solenoid circuit is shorted to system power (B+)
 
T/C ventilation solenoid circuit is damaged or has failed
 
PCM has failed
 
TSB 2-13-002 (2/02) contains information related to this code
 

Trouble Code: P1600



PCM/TCM Serial Communication Link Malfunction

Possible Causes:



Serial communication link between the TCM, PCM and the DLC is open, shorted to ground or shorted to system power
 
TCM and/or PCM has failed
 

Trouble Code: P1715



TCM Pulse Generator Circuit Malfunction

Possible Causes:



A/T Pulse generator (+) circuit is open or shorted to ground
 
A/T Pulse generator (-) circuit is open or shorted to ground
 
A/T Pulse generator (+) or (-) circuit is shorted to system power
 
A/T pulse generator is damaged or has failed
 
PCM has failed
 

Trouble Code: P1720



Pressure Control, Shift Control, TCC Solenoid Circuit Malfunction

Possible Causes:



Pressure control solenoid, Shift Control solenoid or TCC control circuit is open, shorted to ground or shorted to system power
 
Pressure control solenoid, Shift control solenoid or TCC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1751



A/T Control Relay Circuit Malfunction

Possible Causes:



A/T Control Relay circuit is open or shorted to ground
 
A/T Control Relay circuit is shorted to system power (B+)
 
A/T Control Relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1795



TP Sensor Signal Circuit to TCM

Possible Causes:



TP sensor signal circuit to TCM is open or shorted to ground
 
TP sensor is damaged or it has failed
 
PCM has failed
 

 
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