2008 Subaru Tribeca BaseFACTORY OEM SERVICE PROCEDURE

Select Lever Cannot Be Shifted

Fig 1: Select Lever Cannot Be Shifted - Wiring Diagram
G05664275Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE FOR SYMPTOM

Step Check Yes No
1 CHECK INPUT SIGNAL OF BODY INTEGRATED UNIT USING SUBARU SELECT MONITOR  .
  1. Turn the ignition switch to OFF.
  2. Connect the Subaru Select Monitor to the data link connector.
  3. Turn the ignition switch to ON and run the Subaru Select Monitor.
  4. Depress the brake pedal.
  5. Read the input signal of stop light switch from Subaru Select Monitor.

    < Ref. to OPERATION , Subaru Select Monitor . >

 Is "ON" displayed? Go to step 2  . Go to step 3  .
2 CHECK DTC OF BODY INTEGRATED UNIT  .
Check DTC of the body integrated unit.
< Ref. to OPERATION , Read Diagnostic Trouble Code (DTC) . >		 Is DTC B0106 displayed? Repair or replace it according to the DTC. Go to step 6  .
3 CHECK STOP LIGHT SWITCH  .
Depress the brake pedal.		 Does the stop light illuminate? Go to step 4  . Check the stop light system.
4 CHECK HARNESS BETWEEN STOP LIGHT SWITCH AND BODY INTEGRATED UNIT  .
  1. Turn the ignition switch to OFF.
  2. Disconnect the connectors of body integrated unit and stop light switch.
  3. Measure the resistance of harness between stop light switch and body integrated unit.

    Connector & terminal 

    (B65) No. 3 - (B281) No. 23: 

 Is the resistance more than 1 MΩ? Repair the open circuit of harness between the body integrated unit and stop light switch. Go to step 5  .
5 CHECK HARNESS BETWEEN STOP LIGHT SWITCH AND BODY INTEGRATED UNIT  .
Measure the resistance of harness between stop light switch and chassis ground.
Connector & terminal 
(B65) No. 3 - Chassis ground: 		 Is the resistance less than 1 Ω? Repair the short circuit of harness between the body integrated unit and stop light switch. Go to step 7  .
6 CHECK SHIFT LOCK SOLENOID  .
  1. Disconnect the connector of shift lock solenoid.
  2. Connect the battery to connector terminal of shift lock solenoid, and operate the solenoid.

    Terminals 

    No.3 (+) - No.4 (-): 

 Is the shift lock solenoid operating properly? Go to step 7  . Replace the shift lock solenoid.
7 CHECK SHIFT LOCK OPERATION  .
  1. Connect all the connectors.
  2. Shift the select lever to "P" range.
  3. Shift the select lever from "P" range to "R" range.
 Can the select lever shift from "P" range to "R" range? Check the body integrated unit. A temporary poor contact of connector or harness may be the cause.
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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.

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