2017 Subaru WRX STIFACTORY OEM SERVICE PROCEDURE

Cruise Control System DTCS

CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Cancel code Item Contents of diagnosis Note
11 Main switch CRUISE switch of cruise control command switch is turned to OFF, and then the cruise control is released. This code is displayed without operating the CRUISE switch. <Ref. to 11 , Diagnostic Procedure with Cancel Code.>
12 Stop & Brake switch Stop light switch or brake switch is turned to ON, and then the cruise control is released. This code is displayed without depressing the brake pedal. <Ref. to 12 , Diagnostic Procedure with Cancel Code.>
13 Clutch switch Clutch switch is turned to ON, and then the cruise control is released. This code is displayed without depressing the clutch pedal. <Ref. to 13 , Diagnostic Procedure with Cancel Code.>
14 Neutral switch Neutral position switch is turned to ON, and then the cruise control is released. This code is displayed without shifting to neutral position. <Ref. to 14 , Diagnostic Procedure with Cancel Code.>
15 Cancel switch Cancel switch is turned to ON, and then the cruise control is released. This code is displayed without operating the cancel switch. <Ref. to 15 , Diagnostic Procedure with Cancel Code.>
16 Ignition switch Ignition switch is turned to OFF, and then the cruise control is released. This code is displayed without operating the ignition switch. <Ref. to 16 , Diagnostic Procedure with Cancel Code.>
21 Abnormality of switches when Ignition switch on When the ignition switch is turned to ON, each switch of cruise control command switch is already turned to ON. This code is displayed when the ignition switch is turned to ON without operating the cruise control command switch. <Ref. to 21 , Diagnostic Procedure with Cancel Code.>
22 Abnormality of change in vehicle speed Malfunction of vehicle speed signal variation is detected. <Ref. to 22 , Diagnostic Procedure with Cancel Code.>
24 Abnormality of switches related to cruise control Open circuit of the cruise control switch is detected during cruise driving. (The system is judged as model without cruise control.) This code is displayed with normal operation. <Ref. to 24 , Diagnostic Procedure with Cancel Code.>
31 Abnormal engine speed Signal
  • Abnormal increase of engine speed is detected.
  • Gear is placed in Neutral, 1st (MT model only) or Reverse position.
 Cruise in 2nd shift position or more. <Ref. to 31 , Diagnostic Procedure with Cancel Code.>
32 Cruse Control out of Range
  • Controlled vehicle speed decreased under the limit during cruising.
  • Set operation was performed at vehicle speed unavailable for setting.
  • RESUME operation was performed without memorized vehicle speed.
 This code is displayed, though the vehicle speed is increased to the speed available for cruise set and set operation was performed. <Ref. to 32 , Diagnostic Procedure with Cancel Code.>
34 Prohibition of cruise control at continuing big Accel. angle The vehicle has been driven at higher speed than set vehicle speed for an abnormally long time (approximately 10 minutes) during cruise driving. This code is displayed when driving for a long period of time at higher speed than appropriate cruise set vehicle speed by operating accelerator pedal. In this case, the cruise setting is deactivated. <Ref. to 34 , Diagnostic Procedure with Cancel Code.>
35 Prohibition of cruise control at vehicle speed F/B malfunction Set vehicle speed cannot be kept because of some reasons (steep uphill, parking brake, abnormal decrease of engine output, etc.) during cruise driving. This code is displayed when driving condition is not suitable for cruise control. Perform cruise set operation after clearing the possible cause. <Ref. to 35 , Diagnostic Procedure with Cancel Code.>
41 VDC/TCS Operating Vehicle dynamics control (VDC), TCS or EPB is operated during cruise driving or cruise setting. This code is displayed when driving condition is not suitable for cruise control. Perform cruise set operation after clearing the possible cause. <Ref. to 41 , Diagnostic Procedure with Cancel Code.>
43 ABS/VDC Failure
  • Detected the situation that some or all functions of ABS or VDC can not be activated during cruise driving or cruise setting.
  • The CRUISE switch was pressed before starting the engine, but the CRUISE indicator did not illuminate.
 <Ref. to 43 , Diagnostic Procedure with Cancel Code.>
44 Body Integrated unit Failure Body integrated unit system malfunction is detected during cruise driving or cruise setting. <Ref. to 44 , Diagnostic Procedure with Cancel Code.>
45 Meter Failure Combination meter malfunction is detected during cruise driving or cruise setting. <Ref. to 45 , Diagnostic Procedure with Cancel Code.>
49 TCM Failure Transmission control module (TCM) malfunction is detected during cruise driving or cruise setting. <Ref. to 49 , Diagnostic Procedure with Cancel Code.>
61 Stop & Brake switch Malfunction in the stop light & brake switch is detected. <Ref. to 61 , Diagnostic Procedure with Cancel Code.>
62 Neutral Switch Failure Neutral position switch malfunction is detected. <Ref. to 62 , Diagnostic Procedure with Cancel Code.>
63 Abnormality 1 of change in vehicle speed Malfunction of vehicle speed signal variation is detected. <Ref. to 63 , Diagnostic Procedure with Cancel Code.>
64 Engine Sensor Failure 1 Malfunction related to engine is detected. <Ref. to 64 , Diagnostic Procedure with Cancel Code.>
65 Abnormality 1 of switches related to cruise control Cruise control command switch malfunction is detected. (When the switch is pressed ON for a long time (approximately two minutes), stuck ON condition is detected.) <Ref. to 65 , Diagnostic Procedure with Cancel Code.>
66 Cruise Control Calculation Error Malfunction of the cruise control calculation (microcomputer) is detected. <Ref. to 66 , Diagnostic Procedure with Cancel Code.>
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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.