Subaru Crosstrek Service Manual: 12
CRUISE CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code
12
Detected when brake pedal is depressed or malfunction related to stop light & brake switch occurs.
TROUBLE SYMPTOM:
• Cruise control cannot be set.
• Cruise control cannot be released.
WIRING DIAGRAM:
Cruise control system Cruise Control System > WIRING DIAGRAM">
| STEP | CHECK | YES | NO |
1.CHECK STOP LIGHT & BRAKE SWITCH.
Check the stop light & brake switch. Stop Light & Brake Switch">
Is the stop light & brake switch and installation position OK?
Diagnostic Procedure with Cancel Code > 12">Go to Step 2.
Replace the stop light & brake switch. Or adjust the installation position.
2.CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the stop light & brake switch harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness connector terminal and chassis ground.
Connector & terminal
(B65) No. 3 (+) — Chassis ground (−):
Is the voltage 10 V or more?
Diagnostic Procedure with Cancel Code > 12">Go to Step 3.
• Check fuse No. 8 (in fuse & relay box).
• Check for open or short in the harness between stop light & brake switch and fuse & relay box.
3.CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
Measure the voltage between harness connector terminal and chassis ground.
Connector & terminal
(B65) No. 1 (+) — Chassis ground (−):
Is the voltage 10 V or more?
Diagnostic Procedure with Cancel Code > 12">Go to Step 4.
• Check fuse No. 4 (in fuse & relay box).
• Check for open or short in the harness between stop light & brake switch and fuse & relay box.
4.CHECK STOP LIGHT & BRAKE SWITCH CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector of ECM.
3) Measure the resistance between ECM harness connector terminal and stop light & brake switch harness connector terminal.
Connector & terminal
(B137) No. 3 — (B65) No. 4:
(B137) No. 7 — (B65) No. 2:
Is the resistance less than 10 ??
Replace the ECM.
Engine Control Module (ECM)">
Repair the harness.
49
CRUISE CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code49Automatic transmission malfunction is detected.Automatic transmission malfunction is detected during cruise driving or c ...
13
CRUISE CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Cancel Code13Detected when clutch pedal is depressed or malfunction related to clutch switch occurs.TROUBLE SYMPTOM:• Cruise co ...
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