2006 Subaru Outback RFACTORY OEM SERVICE PROCEDURE

DTC P0607 Control Module Performance

DTC DETECTING CONDITION: 

TROUBLE SYMPTOM: 

  • Erroneous idling
  • Poor driving performance
CAUTION: After repair or replacement of faulty parts, perform Clear Memory Mode < Ref. to OPERATION , Clear Memory Mode. > and Inspection Mode < Ref. to PROCEDURE , Inspection Mode. >.

WIRING DIAGRAM: 

Fig 1: Control Module - Wiring Diagram
G05019104
DTC P0607 CONTROL MODULE PERFORMANCE - DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK INPUT VOLTAGE OF ECM. 
  1. Turn the ignition switch to ON.
  2. Measure the voltage between ECM connector and chassis ground.

    Connector & terminal 

    (B134) No. 7 (+) - Chassis ground (-): 

    (B135) No. 2 (+) - Chassis ground (-): 

 Is the voltage 10 - 13 V? Go to step 2.  Repair the open or ground short circuit of power supply circuit.
2 CHECK INPUT VOLTAGE OF ECM. 
  1. Start the engine.
  2. Measure the voltage between ECM connector and chassis ground.

    Connector & terminal 

    (B134) No. 7 (+) - Chassis ground (-): 

    (B135) No. 2 (+) - Chassis ground (-): 

 Is the voltage 13 - 15 V? Go to step 3.  Repair the open or ground short circuit of power supply circuit.
3 CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors from the ECM and electronic throttle control.
  3. Measure the resistance of harness between ECM and electronic throttle control connector.

    Connector & terminal 

    (E57) No. 5 - (B134) No. 19: 

    (E57) No. 3 - (B134) No. 29: 

 Is the resistance less than 1 Ω? Go to step 4.  Repair the open circuit of harness between ECM and electronic throttle control connector.
4 CHECK ECM GROUND HARNESS. 
Measure the voltage between ECM connector and chassis ground.
Connector & terminal 
(B134) No. 3 (+) - Chassis ground (-): 
(B134) No. 5 (+) - Chassis ground (-): 
(B137) No. 1 (+) - Chassis ground (-): 
(B137) No. 2 (+) - Chassis ground (-): 
(B137) No. 3 (+) - Chassis ground (-): 
(B137) No. 7 (+) - Chassis ground (-): 		 Is the voltage less than 1 V? Repair the poor contact of ECM connector.
Replace the ECM if defective. < Ref. to ENGINE CONTROL MODULE (ECM) . >		 Further tighten the engine ground terminal.
Chapter Navigation
Return to Chapter: Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.