Subaru Crosstrek Service Manual: 11

When CRUISE switch is pressed, or a malfunction related to CRUISE switch occurs, this is detected.

Trouble symptom:

• Cruise control cannot be set. (Cancelled immediately.)

• Cruise control cannot be released.

1.CHECK CRUISE CONTROL COMMAND SWITCH CIRCUIT.

1) Remove the driver’s airbag module. Driver’s Airbag Module > REMOVAL">

2) Disconnect the harness connector of cruise control command switch.

3) Turn the ignition switch to ON.

4) Measure the voltage between harness connector terminal and chassis ground.

Connector & terminal

(ST3) No. 4 (+) — Chassis ground (−):

(ST3) No. 3 (+) — Chassis ground (−):

Is the voltage 5 V or more?

Diagnostic Procedure with Cancel Code > 11">Go to Step 2.

Check the harness between cruise control command switch and ECM, and the steering roll connector for open or short circuit, or for poor contact.

2.CHECK CRUISE CONTROL COMMAND SWITCH CIRCUIT.

1) Turn the ignition switch to OFF.

2) Remove the cruise control command switch. Cruise Control Command Switch > REMOVAL">

3) Measure the resistance between harness connector terminal and chassis ground.

Connector & terminal

(ST3) No. 9 — Chassis ground:

Is the resistance less than 10 ??

Diagnostic Procedure with Cancel Code > 11">Go to Step 3.

Check for open circuit between cruise control command switch, ECM, and chassis ground and check the ECM.

3.CHECK CRUISE CONTROL COMMAND SWITCH.

Measure the resistance between switch terminals when the cruise control command switch is not depressed.

Terminals

No. 3 — No. 9:

Is the resistance approx. 4 k??

Diagnostic Procedure with Cancel Code > 11">Go to Step 4.

Replace the cruise control command switch.
Cruise Control Command Switch">

4.CHECK CANCEL SWITCH.

1) Turn the ignition switch to OFF.

2) Remove the cruise control command switch. Cruise Control Command Switch > REMOVAL">

3) Measure the resistance between switch terminals with the CANCEL switch pressed.

Terminals

No. 3 — No. 9:

Is the resistance approx. less than 1 ? when the CANCEL switch is pressed?

Diagnostic Procedure with Cancel Code > 11">Go to Step 5.

Replace the cruise control command switch.
Cruise Control Command Switch">

5.CHECK SET/− SWITCH.

Measure the resistance between the switch terminals with the SET/− switch pressed.

Terminals

No. 3 — No. 9:

Is the resistance approx. 250 ? when the SET/− switch is pressed?

Diagnostic Procedure with Cancel Code > 11">Go to Step 6.

Replace the cruise control command switch. Cruise Control Command Switch">

6.CHECK RES/+ SWITCH CIRCUIT.

Measure the resistance between the switch terminals with the RES/+ switch pressed.

Terminals

No. 3 — No. 9:

Is the resistance approx. 1,500 ? when the RES/+ switch is pressed?

Replace the ECM.
Engine Control Module (ECM)">

Replace the cruise control command switch. Cruise Control Command Switch">

Diagnostic procedure with cancel code

49

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