Clutch Switch Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Clutch Switch Circuit; 2013 MY FR-S [03/2012 -]
- Clutch Switch Circuit

DESCRIPTION

Clutch switch circuit inspection is necessary for M/T vehicles.

When the clutch pedal is released, the ECM receives positive (+) battery voltage through the ECU IG2 fuse. While depressing the clutch pedal, the clutch switch sends a signal to terminal CLSW of the ECM. The ECM cancels cruise control drive when terminal CLSW receives the signal.

WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
Clutch switch assembly conditions can be checked using the Techstream.

(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / All Data / Clutch Switch Data List / Active Test.

Engine





PROCEDURE

1. CHECK ECM (TERMINAL VOLTAGE)

(a) Turn the ignition switch to ON.









(b) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NG -- INSPECT CLUTCH SWITCH ASSEMBLY

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures

2. INSPECT CLUTCH SWITCH ASSEMBLY

(a) Inspect the clutch switch assembly Component Tests and General Diagnostics.

NG -- REPLACE CLUTCH SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (ECM - CLUTCH SWITCH ASSEMBLY)

(a) Disconnect the clutch switch assembly connector.

(b) Disconnect the ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance (Check for open):





Standard resistance (Check for short):





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - CLUTCH SWITCH ASSEMBLY)

OK -- INSPECT ECM POWER SOURCE CIRCUIT ECM Power Source Circuit