C1116
C1116 STOP LAMP SWITCH
Description
The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to the ABS actuator and electric unit (control unit).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
- GO TO 2.
2. DTC REPRODUCTION PROCEDURE
1.Turn the ignition switch OFF to ON.
2.Perform self-diagnosis for "ABS" with CONSULT.
Is DTC "C1116" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
NOTE:
DTC "C1116" may be detected when the brake pedal and the accelerator pedal are simultaneously depressed for 1 minute or more while driving the vehicle. This is not a malfunction.
1. INTERVIEW FROM THE CUSTOMER
Check if the brake pedal and the accelerator pedal are simultaneously depressed for 1 minute or more while driving the vehicle.
Is there such a history?
YES- GO TO 2.
NO- GO TO 3.
2. PERFORM SELF-DIAGNOSIS
1.Erase self-diagnosis result for "ABS" with CONSULT.
2.Turn the ignition switch OFF, and wait 10 seconds or more.
3.Start the engine.
CAUTION:
Never start the vehicle.
4.Depress the brake pedal several times.
5.Perform self-diagnosis for "ABS" with CONSULT.
Is DTC "C1116" detected?
YES- GO TO 3.
NO- INSPECTION END
3. STOP LAMP FOR ILLUMINATION
Depress brake pedal and check that stop lamp turns ON.
Does stop lamp turn ON?
YES- GO TO 5.
NO- Check the stop lamp system. Refer to "Wiring Diagram BCM -" [1][2]Body Control Systems. GO TO 4.
4. CHECK DATA MONITOR (1)
1.Erase self-diagnosis result for "ABS" with CONSULT.
2.Turn the ignition switch OFF, and wait 10 seconds or more.
3.Start the engine.
CAUTION:
Never start the vehicle.
4.Select "ABS", "DATA MONITOR" and "STOP LAMP SW" according to this order with CONSULT. Check that data monitor displays "On" or "Off" when brake pedal is depress or release. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
5.Select "ABS", "DATA MONITOR" and "pressure sensor" according to this order. Check that data monitor displays "5 bar" or less when brake pedal is depress. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 5.
5. CHECK STOP LAMP SWITCH CLEARANCE
1.Turn the ignition switch OFF.
2.Check the stop lamp switch clearance. Refer to "Inspection and Adjustment" Adjustments.
Is the inspection result normal?
YES- GO TO 7.
NO- Adjust stop lamp switch clearance. Refer to "Inspection and Adjustment" Adjustments. GO TO 6.
6. CHECK DATA MONITOR (2)
1.Erase self-diagnosis result for "ABS" with CONSULT.
2.Turn the ignition switch OFF, and wait 10 seconds or more.
3.Start the engine.
CAUTION:
Never start the vehicle.
4.Select "ABS", "DATA MONITOR" and "STOP LAMP SW" according to this order with CONSULT. Check that data monitor displays "On" or "Off" when brake pedal is depress or release. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
5.Select "ABS", "DATA MONITOR" and "pressure sensor" according to this order. Check that data monitor displays "5 bar" or less when brake pedal is depress. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 7.
7. CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 9.
NO- Replace stop lamp switch. Refer to "Exploded View" Exploded View. GO TO 8.
8. CHECK DATA MONITOR (3)
1.Erase self-diagnosis result for "ABS" with CONSULT.
2.Turn the ignition switch OFF, and wait 10 seconds or more.
3.Start the engine.
CAUTION:
Never start the vehicle.
4.Select "ABS", "DATA MONITOR" and "STOP LAMP SW" according to this order with CONSULT. Check that data monitor displays "On" or "Off" when brake pedal is depress or release. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
5.Select "ABS", "DATA MONITOR" and "pressure sensor" according to this order. Check that data monitor displays "5 bar" or less when brake pedal is depress. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 9.
9. CHECK CONNECTOR AND TERMINAL
1.Turn the ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) harness connector.
3.Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
4.Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
5.Disconnect stop lamp switch harness connector.
6.Check the stop lamp switch harness connector for disconnection or looseness.
7.Check the stop lamp switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- GO TO 11.
NO- Repair or replace error-detected parts. GO TO 10.
10. CHECK DATA MONITOR (4)
1.Connect ABS actuator and electric unit (control unit) harness connector.
2.Connect stop lamp switch harness connector.
3.Erase self-diagnosis result for "ABS" with CONSULT.
4.Turn the ignition switch OFF, and wait 10 seconds or more.
5.Start the engine.
CAUTION:
Never start the vehicle.
6.Select "ABS", "DATA MONITOR" and "STOP LAMP SW" according to this order with CONSULT. Check that data monitor displays "On" or "Off" when brake pedal is depress or release. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
7.Select "ABS", "DATA MONITOR" and "pressure sensor" according to this order. Check that data monitor displays "5 bar" or less when brake pedal is depress. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 11.
11. CHECK STOP LAMP SWITCH CIRCUIT (1)
1.Turn the ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) harness connector.
3.Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
4.Turn the ignition switch ON.
5.Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Exploded View" Exploded View.
NO- Repair or replace error-detected parts. GO TO 12.
12. CHECK STOP LAMP SWITCH CIRCUIT (2)
1.Turn the ignition switch OFF.
2.Disconnect stop lamp switch harness connector.
3.Check the continuity between ABS actuator and electric unit (control unit) harness connector and stop lamp switch harness connector.
*1: With ICC
*2: Without ICC
4.Check the continuity between ABS actuator and electric unit (control unit) harness connector and the ground.
Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Exploded View" Exploded View.
NO- Repair or replace error-detected parts. GO TO 13.
13. CHECK DATA MONITOR (5)
1.Connect ABS actuator and electric unit (control unit) harness connector.
2.Connect stop lamp switch harness connector.
3.Erase self-diagnosis result for "ABS" with CONSULT.
4.Turn the ignition switch OFF, and wait 10 seconds or more.
5.Start the engine.
CAUTION:
Never start the vehicle.
6.Select "ABS", "DATA MONITOR" and "STOP LAMP SW" according to this order with CONSULT. Check that data monitor displays "On" or "Off" when brake pedal is depress or release. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
7.Select "ABS", "DATA MONITOR" and "pressure sensor" according to this order. Check that data monitor displays "5 bar" or less when brake pedal is depress. Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace ABS actuator and electric unit (control unit). Refer to "Exploded View" Exploded View.
Component Inspection
1. CHECK STOP LAMP SWITCH
1.Turn the ignition switch OFF.
2.Disconnect stop lamp switch harness connector.
3.Check the continuity between stop lamp switch connector terminals.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace stop lamp switch. Refer to "Exploded View" Exploded View.
Special Repair Requirement
1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit) or steering angle sensor and removing steering angle sensor. Refer to BRC9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement"
- END