Subaru Forester 1998-05

2.5L H4 - Auto 6

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Trouble Code: P1492



EGR Solenoid Valve Signal #1 Circuit Malfunction (low input)

Possible Causes:



Check power supply to EGR solenoid
 
Check harness between ECM and EGR solenoid valve connector
 
Check poor contact
 

Trouble Code: P1493



EGR Solenoid Valve Signal #1 Circuit Malfunction (high input)

Possible Causes:



Check other DTC on display
 
Check harness between ECM and EGR solenoid valve connector
 

Trouble Code: P1494



EGR Solenoid Valve Signal #2 Circuit Malfunction (low input)

Possible Causes:



Check power supply to EGR solenoid
 
Check harness between ECM and EGR solenoid valve connector
 
Check poor contact
 

Trouble Code: P1495



EGR Solenoid Valve Signal #2 Circuit Malfunction (high input)

Possible Causes:



Check other DTC on display
 
Check harness between ECM and EGR solenoid valve connector
 

Trouble Code: P1496



EGR Solenoid Valve Signal #3 Circuit Malfunction (low input)

Possible Causes:



Check power supply to EGR solenoid
 
Check harness between ECM and EGR solenoid valve connector
 
Check poor contact
 

Trouble Code: P1497



EGR Solenoid Valve Signal #3 Circuit Malfunction (high input)

Possible Causes:



Check other DTC on display
 
Check harness between ECM and EGR solenoid valve connector
 

Trouble Code: P1498



EGR Solenoid Valve Signal #4 Circuit Malfunction (low input)

Possible Causes:



Check power supply to EGR solenoid
 
Check harness between ECM and EGR solenoid valve connector
 
Check poor contact
 

Trouble Code: P1499



EGR Solenoid Valve Signal #4 Circuit Malfunction (high input)

Possible Causes:



Check other DTC on display
 
Check harness between ECM and EGR solenoid valve connector
 

Trouble Code: P1507



Idle Control System Malfunction (fail safe)

Possible Causes:



Check any other DTC on display
 
Check air intake system
 

Trouble Code: P1510



ISC Solenoid Valve Signal #1 Circuit Malfunction (low input)

Possible Causes:



Check power supply to idle air control solenoid valve
 
Check harness between ECM and idle control solenoid valve connector
 
Check poor contact
 

Trouble Code: P1511



ISC Solenoid Valve Signal #1 Circuit Malfunction (high input)

Possible Causes:



Check any other DTC on display
 
Check ground circuit for ECM
 
Check harness between ECM and idle control solenoid valve connector
 

Trouble Code: P1512



ISC Solenoid Valve Signal #2 Circuit Malfunction (low input)

Possible Causes:



Check power supply to idle air control solenoid valve
 
Check harness between ECM and idle control solenoid valve connector
 
Check poor contact
 

Trouble Code: P1513



ISC Solenoid Valve Signal #2 Circuit Malfunction (high input)

Possible Causes:



Check any other DTC on display
 
Check ground circuit for ECM
 
Check harness between ECM and idle control solenoid valve connector
 

Trouble Code: P1514



ISC Solenoid Valve Signal #3 Circuit Malfunction (low input)

Possible Causes:



Check power supply to idle air control solenoid valve
 
Check harness between ECM and idle control solenoid valve connector
 
Check poor contact
 

Trouble Code: P1515



ISC Solenoid Valve Signal #3 Circuit Malfunction (high input)

Possible Causes:



Check any other DTC on display
 
Check ground circuit for ECM
 
Check harness between ECM and idle control solenoid valve connector
 

Trouble Code: P1516



ISC Solenoid Valve Signal #4 Circuit Malfunction (low input)

Possible Causes:



Check power supply to idle air control solenoid valve
 
Check harness between ECM and idle control solenoid valve connector
 
Check poor contact
 

Trouble Code: P1517



ISC Solenoid Valve Signal #4 Circuit Malfunction (high input)

Possible Causes:



Check any other DTC on display
 
Check ground circuit for ECM
 
Check harness between ECM and idle control solenoid valve connector
 

Trouble Code: P1518



Starter Switch Circuit Low Input

Possible Causes:



Check operation of starter motor
 

Trouble Code: P1520



Cooling Fan Relay 1 Circuit High Input

Possible Causes:



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

Trouble Code: P1540



Vehicle Speed Sensor Malfunction 2

Possible Causes:



Check transaxle type (automatic)
 
Check any other DTC on display
 
Check speedometer operation in combination meter
 
Check harness between ECM and combination meter connector
 

Trouble Code: P1544



Exhaust Gas Temperature Too High

Possible Causes:



Check any other DTC on display
 
Check exhaust system
 

Trouble Code: P1560



Back-Up Voltage Circuit Malfunction

Possible Causes:



Check input signal of ECM
 
Check harness between ECM and main fuse box connector
 
Check fuse number 13
 

Trouble Code: P1698



Engine Torque Control Cut Signal Circuit Malfunction (low input)

Possible Causes:



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

Trouble Code: P1699



Engine Torque Control Cut Signal Circuit Malfunction (high input)

Possible Causes:



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

Trouble Code: P1700



Throttle Position Sensor Circuit Malfunction For Automatic Transmission

Possible Causes:



Check any other DTC on display
 
Check throttle position sensor circuit
 

Trouble Code: P1701



Cruise Control Set Signal Circuit Malfunction For Automatic Transmission

Possible Causes:



Check harness between TCM and CCM
 
Check input signal for TCM
 

Trouble Code: P1702



Automatic Transmission Diagnosis Input Signal Circuit Malfunction

Possible Causes:



Check harness between TCM and CCM
 

Trouble Code: P1703



Low Clutch Timing Control Solenoid Valve Circuit Malfunction

Possible Causes:



Check low clutch timing control solenoid valve circuit
 

Trouble Code: P1704



2-4 Brake Timing Control Solenoid Valve Circuit Malfunction

Possible Causes:



Check 2-4 brake timing control solenoid valve circuit
 

Trouble Code: P1705



2-4 Brake Pressure Control Solenoid Valve (duty solenoid -D-) Circuit Malfunction

Possible Causes:



Check 2-4 brake pressure control solenoid valve (duty solenoid -D-) circuit
 

Trouble Code: P1711



Engine Torque Control Signal #1 Circuit Malfunction

Possible Causes:



Check input signal for ECM
 
Check poor contact
 
Check harness between ECM and TCM connector
 

Trouble Code: P1712



Engine Torque Control Signal #2 Circuit Malfunction

Possible Causes:



Check input signal for ECM
 
Check poor contact
 
Check harness between ECM and TCM connector
 

Trouble Code: P1722



Automatic Transmission Diagnosis Input Signal Circuit High Input

Possible Causes:



Check for identification circuit malfunction
 
Check harness between ECM and TCM connector
 
Check output signal for ECM
 
Check poor contact
 

Trouble Code: P1742



Automatic Transmission Diagnosis Input Signal Circuit Malfunction

Possible Causes:



Check for identification circuit malfunction
 
Check driving conditions (shift control pattern)
 
Check output signal for ECM
 
Check accessories (car phone, CB installation, etc)
 

Trouble Code: P2004



Tumble Generated Valve System 1 (valve open)

Possible Causes:



Check any other DTC on display
 
Check tumble generator valve (RH)
 

Trouble Code: P2005



Tumble Generated Valve System 2 (valve open)

Possible Causes:



Check any other DTC on display
 
Check tumble generator valve (RH)
 

Trouble Code: P2006



Tumble Generated Valve System 1 (valve closed)

Possible Causes:



Check any other DTC on display
 
Check tumble generator valve (RH)
 

Trouble Code: P2007



Tumble Generated Valve System 2 (valve closed)

Possible Causes:



Check any other DTC on display
 
Check tumble generator valve (RH)
 

Trouble Code: P2008



Tumble Generated Valve System 1 Circuit Malfunction (open)

Possible Causes:



Check harness between ECM and tumble generator valve actuator connector
 
Check poor contact
 

Trouble Code: P2009



Tumble Generated Valve System 1 Circuit Malfunction (closed)

Possible Causes:



Check harness between ECM and tumble generator valve actuator connector
 

 
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