Subaru Car 1998-05

3.0L H6 - Std 3

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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: P0508



Idle Control System Circuit Low

Possible Causes:



Check output signal from ECM
 
Check power supply to idle air control solenoid valve
 
Check harness between ECM and idle air control solenoid valve connector
 
Check ground circuit of the idle air control solenoid valve
 
Check poor contact
 

Trouble Code: P0509



Idle Control System Circuit High

Possible Causes:



Check throttle cable
 
Check output signal from ECM
 

Trouble Code: P0512



Starter Request Circuit

Possible Causes:



Check starter motor
 

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: P0558



Alternator Circuit Low Input

Possible Causes:



Check harness between alternator and ECM connector
 

Trouble Code: P0559



Alternator Circuit High Input

Possible Causes:



Check harness between alternator and ECM connector
 

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: P0604



Internal Control Module Random Access Memory (RAM) Error

Possible Causes:



Check any other DTC on display
 

Trouble Code: P0691



Cooling Fan 1 Control Circuit Low

Possible Causes:



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

Trouble Code: P0692



Cooling Fan 1 Control Circuit High

Possible Causes:



Check output signal from ECM
 
Check for short circuit in radiator fan relay control circuit
 
Check main fan relay
 
Check sub fan relay
 
Check poor contact
 

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: 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
 

Trouble Code: P0864



TCM Communication Circuit Range/Performance

Possible Causes:



Check driving condition (is AT shift control functioning)
 
Check accessory
 

Trouble Code: P1110



Atmospheric Pressure Sensor Circuit Low Input

Possible Causes:



Using the a scan tool, check current data
 
Check poor contact
 
Check input signal for ECM
 
Check harness between ECM and atmospheric pressure sensor connector
 

Trouble Code: P1111



Atmospheric Pressure Sensor Circuit High Input

Possible Causes:



Using the a scan tool, check current data
 
Check input signal for ECM
 
Check harness between ECM and pressure sensor connector
 

Trouble Code: P1112



Atmospheric Pressure Sensor Circuit Range/Performance Problem

Possible Causes:



Check input signal for ECM
 
Check harness between ECM and pressure sensor connector
 
Check any other DTC on display
 
Check sensor filter
 
Using the a scan tool, check current data
 

Trouble Code: P1130



Front Oxygen Sensor Circuit Malfunction

Possible Causes:



Check harness between ECM and sensor connector
 
Check poor contact
 

Trouble Code: P1131



Front Oxygen Sensor Circuit Malfunction (short circuit)

Possible Causes:



Check harness between ECM and sensor connector
 
Check output signal for ECM
 

Trouble Code: P1134



Front Oxygen Sensor Micro Computer Problem

Possible Causes:



Check any other DTC on display
 

Trouble Code: P1139



Front Oxygen Sensor 1 Heater Circuit Range/Performance Problem

Possible Causes:



Check harness between ECM and sensor connector
 
Check front sensor
 
Check poor contact
 

 
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