Diagnosis Procedure

1. INSPECTION START

   Check which type of transmission the vehicle is equipped with.

   Which type of transmission? 

   A/T: GO TO 2.

   M/T: GO TO 7.

2. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect ICC brake switch harness connector.
   3. Turn ignition switch ON.
   4. Check the voltage between ICC brake switch harness connector and ground.
   VOLTAGE REFERENCE
   
   

   ICC brake switch		Ground	Voltage
   Connector	Terminal
   E114	1	Ground	Battery voltage

   Is the inspection result normal? 

   YES: GO TO 4.

   NO: GO TO 3.

3. DETECT MALFUNCTIONING PART

   Check the following.

   • Fuse block (J/B) connector E103
   • 10A fuse (No. 3)
   • Harness for open or short between ICC brake switch and fuse

   Repair open circuit or short to ground in harness or connectors.

4. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
   1. Turn ignition switch OFF.
   2. Disconnect ECM harness connector.
   3. Check the continuity between ICC brake switch harness connector and ECM harness connector.
      CONTINUITY REFERENCE
      
      

      ICC brake switch		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      E114	2	M107	126	Existed

   4. Also check harness for short to ground and short to power.

   Is the inspection result normal? 

   YES: GO TO 6.

   NO: GO TO 5.

5. DETECT MALFUNCTIONING PART

   Check the following.

   • Harness connectors E106, M6
   • Harness for open or short between ICC brake switch and ECM

   Repair open circuit, short to ground or short to power in harness or connectors.

6. CHECK ICC BRAKE SWITCH

   Refer to "COMPONENT INSPECTION (ICC BRAKE SWITCH) ".

   Is the inspection result normal? 

   YES: GO TO 15.

   NO: Replace ICC brake switch.

7. CHECK ICC BRAKE SWITCH CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect ICC brake switch harness connector.
   3. Turn ignition switch ON.
   4. Check the voltage between ICC brake switch harness connector and ground.
   VOLTAGE REFERENCE
   
   

   ICC brake switch		Ground	Condition		Voltage (V)
   Connector	Terminal
   E114	1	Ground	Brake pedal	Slightly depressed	Approx. 0
   				Fully released	Battery voltage

   Is the inspection result normal? 

   YES: GO TO 12.

   NO: GO TO 8.

8. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect ICC clutch switch harness connector.
   3. Turn ignition switch ON.
   4. Check the voltage between ICC clutch switch harness connector and ground.
   VOLTAGE REFERENCE
   
   

   ICC clutch switch		Ground	Voltage
   Connector	Terminal
   E113	1	Ground	Battery voltage

   Is the inspection result normal? 

   YES: GO TO 10.

   NO: GO TO 9.

9. DETECT MALFUNCTIONING PART

   Check the following.

   • Fuse block (J/B) connector E103
   • 10 A fuse (No. 3)
   • Harness for open or short between ICC clutch switch and fuse

   Repair open circuit or short to ground in harness or connectors.

10. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
    1. Turn ignition switch OFF.
    2. Check the continuity between ICC clutch switch harness connector and ICC brake switch harness connector.
       CONTINUITY REFERENCE
       
       

       ICC clutch switch		ICC brake switch		Continuity
       Connector	Terminal	Connector	Terminal
       E113	2	E114	1	Existed

    3. Also check harness for short to ground and short to power.

    Is the inspection result normal? 

    YES: GO TO 11.

    NO: Repair open circuit, short to ground or short to power in harness or connectors.

11. CHECK ICC CLUTCH SWITCH

    Refer to "COMPONENT INSPECTION (ICC CLUTCH SWITCH) ".

    Is the inspection result normal? 

    YES: GO TO 15.

    NO: Replace ICC clutch switch.

12. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between ICC brake switch harness connector and ECM harness connector.
       CONTINUITY REFERENCE
       
       

       ICC brake switch		ECM		Continuity
       Connector	Terminal	Connector	Terminal
       E109	1	M107	126	Existed

    4. Also check harness for short to ground and short to power.

    Is the inspection result normal? 

    YES: GO TO 14.

    NO: GO TO 13.

13. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors E106, M6
    • Harness for open or short between ICC brake switch and ECM

    Repair open circuit, short to ground or short to power in harness or connectors.

14. CHECK ICC BRAKE SWITCH

    Refer to "COMPONENT INSPECTION (ICC BRAKE SWITCH) ".

    Is the inspection result normal? 

    YES: GO TO 15.

    NO: Replace ICC brake switch.

15. CHECK INTERMITTENT INCIDENT

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END