Subaru Forester 1998-05

2.5L H4 VIN 6 Std 3

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Trouble Code: P0459



Evaporative Emission System Purge Control Valve Circuit High

Possible Causes:



Check output signal of ECM
 
Check harness between purge control solenoid valve and ECM connector
 
Check purge control solenoid valve
 
Check poor contact
 

Trouble Code: P0461



Evaporative Emission System Purge Control Valve Circuit High

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0462



Evaporative Emission Control System Leak Detected

Possible Causes:



Check speedometer and tachometer operation
 
Check input signal of ECM
 
Check input voltage from ECM
 
Check harness between ECM and combination meter connector
 
Check fuel tank cord
 
Check fuel level sensor
 
Check fuel sub level sensor
 

Trouble Code: P0463



Fuel Level Sensor -A- Circuit High

Possible Causes:



Check speedometer and tachometer operation
 
Check input signal of ECM
 
Check input voltage from ECM
 
Check harness between ECM and fuel tank cord
 
Check harness between fuel tank cord and ground
 
Check fuel tank cord
 
Check fuel level sensor
 
Check fuel sub level sensor
 

Trouble Code: P0464



Fuel level Sensor Circuit Intermittent

Possible Causes:



Check any other DTC on display
 
Check fuel level sensor
 
Check fuel level sub sensor
 

Trouble Code: P0480



Cooling Fan relay 1 Circuit Low Input

Possible Causes:



Check output signal from ECM
 
Check ground short circuit min radiator fan relay 1 control circuit
 
Check power supply for relay
 
Check main fan relay
 
Check for open circuit in main fan relay control circuit
 
Check poor contact
 

Trouble Code: P0483



Fan Rationality Check

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0500



Vehicle Speed Sensor

Possible Causes:



Check DTC of VDC
 

Trouble Code: P0503



Vehicle Speed Sensor Intermittent/Erratic/High

Possible Causes:



Check speedometer operation in combination meter
 
Check harness between ECM and combination meter connector
 

Trouble Code: P0505



Idle Control System Malfunction

Possible Causes:



Check air intake system
 
Check output signal from ECM
 
Check idle air control solenoid valve
 
Check harness between ECM and idle air control solenoid valve connector
 

Trouble Code: P0506



Idle Control System RPM Lower Than Expected

Possible Causes:



Check any other DTC on display
 
Check air cleaner element
 
Check electronic throttle control
 

Trouble Code: P0507



Idle Control System RPM Higher Than Expected

Possible Causes:



Check any other DTC on display
 
Check air intake system
 
Check electronic throttle control
 

Trouble Code: P0519



Idle Control System Malfunction (fail safe)

Possible Causes:



Check any other DTC on display
 
Check air intake system
 
Check electronic throttle control
 

Trouble Code: P0565



Cruise Control ON Signal

Possible Causes:



Check harness between TCM and CCM connector
 
Check input signal for TCM (on AWD vehicles raise wheels off the ground)
 
Check poor contact
 

Trouble Code: P0600



Serial Communication Link

Possible Causes:



Check engine start failure (does engine run)
 
Check illumination of MIL light
 
Check indication of DTC on display
 
Using the a scan tool, perform diagnosis
 

Trouble Code: P0601



Internal Control Module Memory Check Sum Error

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0691



Cooling Fan 1 Control Circuit Low

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0692



Cooling Fan 1 Control Circuit Low

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0703



Torque Converter/Brake Switch -B- Circuit

Possible Causes:



Check operation of brake light
 
Check harness between TCM and brake light switch connector
 
Check input signal for TCM
 
Check poor contact
 

Trouble Code: P0705



Transmission Range Sensor Circuit (PRNDL input)

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0710



Transmission Fluid Temperature Sensor

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0715



Torque Converter Turbine Speed Sensor Circuit Malfunction

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0716



Input/Turbine Speed Sensor Circuit Range/Performance

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0720



Output Speed Sensor Circuit

Possible Causes:



Using a scan tool, read the data
 

Trouble Code: P0725



Engine Speed Input Circuit Malfunction

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0726



Engine Speed Input Circuit Range/Performance

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0731



Gear 1 Incorrect Ratio

Possible Causes:



Check any other DTC on display
 
Check throttle position sensor circuit
 
Check front VSS circuit
 
Check torque converter turbine speed sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0732



Gear 2 Incorrect Ratio

Possible Causes:



Check any other DTC on display
 
Check throttle position sensor circuit
 
Check front VSS circuit
 
Check torque converter turbine speed sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0733



Gear 3 Incorrect Ratio

Possible Causes:



Check any other DTC on display
 
Check throttle position sensor circuit
 
Check front VSS circuit
 
Check torque converter turbine speed sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0734



Gear 4 Incorrect Ratio

Possible Causes:



Check any other DTC on display
 
Check throttle position sensor circuit
 
Check front VSS circuit
 
Check torque converter turbine speed sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0740



Torque Converter Clutch System Malfunction

Possible Causes:



Check any other DTC on display
 
Check lock up duty solenoid circuit
 
Check throttle position sensor circuit
 
Check torque converter turbine speed sensor circuit
 
Check engine speed input circuit
 
Check brake light switch circuit
 
Check ATF temperature sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0741



Torque Converter Clutch Circuit Performance or Stuck Off

Possible Causes:



Check any other DTC on display
 
Check lock up duty solenoid circuit
 
Check throttle position sensor circuit
 
Check torque converter turbine speed sensor circuit
 
Check engine speed input circuit
 
Check brake light switch circuit and/or inhibitor switch circuit
 
Check ATF temperature sensor circuit
 
Check poor contact
 
Check for mechanical problems
 

Trouble Code: P0743



Torque Converter Clutch System (lock up duty solenoid) Electrical

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0748



Pressure Control Solenoid (line pressure duty solenoid) Electrical

Possible Causes:



Using the a scan tool, read the data
 

Trouble Code: P0753



Shift Solenoid -A- (shift solenoid 1) Electrical

Possible Causes:



Using a scan tool, read the data
 

Trouble Code: P0758



Shift Solenoid -B- (shift solenoid 2) Electrical

Possible Causes:



Using a scan tool, read the data
 

Trouble Code: P0760



Shift Solenoid -C- (shift solenoid 3) Malfunction

Possible Causes:



Check any other DTC on display
 
Check inhibiter switch circuit
 
Check shift solenoid 1 circuit
 
Check shift solenoid 3 circuit
 

Trouble Code: P0763



Shift Solenoid -C- (shift solenoid 3) Electrical

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0851



Neutral Switch Input Circuit Low (manual transaxle)

Possible Causes:



Check input signal of ECM
 
Check poor contact
 
Check neutral safety switch
 
Check harness between ECM and neutral safety switch connector
 
Check neutral safety switch ground
 

Trouble Code: P0852



Neutral Switch Input Circuit High (manual transaxle)

Possible Causes:



Check input signal of ECM
 
Check poor contact
 
Check harness between ECM and transmission harness connector
 
Check neutral safety switch ground
 
Check neutral safety switch
 

 
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