C1116
C1116 STOP LAMP SWITCH
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK DTC DETECTION
With CONSULT-III.
1. Turn the ignition switch OFF to ON.
2. Perform self-diagnosis for "ABS".
Is DTC "C1116" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END
Diagnosis Procedure
1.CHECK STOP LAMP FOR ILLUMINATION
Depress brake pedal and check that stop lamp turns ON.
Does stop lamp turn ON?
YES - GO TO 2.
NO - Check stop lamp system. .
2.CHECK STOP LAMP SWITCH CLEARANCE
1. Turn the ignition switch OFF.
2. Check stop lamp clearance. Inspection and Adjustment.
Is the inspection result normal?
YES - GO TO 3.
NO - Adjust stop lamp switch clearance. Inspection and Adjustment.
3.CHECK STOP LAMP SWITCH POWER SUPPLY (1)
1. Disconnect ABS actuator and electric unit (control unit) harness connector.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Turn the ignition switch ON.
CAUTION:
Never start engine.
4. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 8.
NO - GO TO 4.
4.CHECK STOP LAMP SWITCH CIRCUIT (1)
1. Turn the ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between ABS actuator and electric unit (control unit) harness connector and stop lamp switch harness connector.
4. Check continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace error-detected parts.
5.CHECK STOP LAMP SWITCH
Check stop lamp switch. SEE Component Inspection (Stop lamp Switch).
Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace stop lamp switch. Removal And Installation.
6.CHECK STOP LAMP SWITCH POWER SUPPLY (2)
1. Check voltage between stop lamp switch harness connector and ground.
2. Turn the ignition switch ON.
CAUTION:
Never start engine.
3. Check voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES - Check pin terminals and connection of stop lamp switch harness connector for abnormal conditions. Repair or replace error-detected parts.
NO - GO TO 7.
7.CHECK STOP LAMP SWITCH CIRCUIT (2)
1. Turn the ignition switch OFF.
2. Check 10A fuse (#3).
3. Disconnect fuse block (J/B) harness connector.
4. Check fuse block (J/B) pin terminals for damage or loose connection with harness connector.
5. Check continuity between stop lamp switch harness connector and fuse block (J/B).
Is the inspection result normal?
YES - Perform trouble diagnosis for ignition power supply. Ignition Power Supply, "Wiring Diagram - IGNITION
POWER SUPPLY -".
NO - Repair or replace error-detected parts.
8.CHECK STOP LAMP SWITCH POWER SUPPLY (3)
1. Turn the ignition switch OFF.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Turn the ignition switch ON.
CAUTION:
Never start engine.
4. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 13.
NO - GO TO 9.
9.CHECK STOP LAMP SWITCH CIRCUIT (3)
1. Turn the ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between ABS actuator and electric unit (control unit) harness connector and stop lamp switch harness connector.
4. Check continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 10.
NO - Repair or replace error-detected parts.
10.CHECK STOP LAMP SWITCH
Check stop lamp switch. SEE Component Inspection (Stop lamp Switch).
Is the inspection result normal?
YES - GO TO 11.
NO - Repair or replace stop lamp switch. Removal And Installation.
11.CHECK STOP LAMP SWITCH POWER SUPPLY (4)
1. Check voltage between stop lamp switch harness connector and ground.
2. Turn the ignition switch ON.
CAUTION:
Never start engine.
3. Check voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES - Check pin terminals and connection of stop lamp switch harness connector for abnormal conditions. Repair or replace error-detected parts.
NO - GO TO 12.
12.CHECK STOP LAMP SWITCH CIRCUIT (4)
1. Turn the ignition switch OFF.
2. Check 10A fuse (#7).
3. Disconnect fuse block (J/B) harness connector.
4. Check fuse block (J/B) pin terminals for damage or loose connection with harness connector.
5. Check continuity between stop lamp switch harness connector and fuse block (J/B).
Is the inspection result normal?
YES - Perform trouble diagnosis for battery power supply. Battery Power Supply, "Wiring Diagram - BATTERY
POWER SUPPLY -".
NO - Repair or replace error-detected parts.
13.CHECK STOP LAMP RELAY POWER SUPPLY (1)
1. Turn the ignition switch OFF.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Turn the ignition switch ON.
CAUTION:
Never start engine.
4. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 18.
NO - GO TO 14.
14.CHECK STOP LAMP RELAY CIRCUIT (1)
1. Turn the ignition switch OFF.
2. Disconnect stop lamp relay harness connector.
3. Check continuity between ABS actuator and electric unit (control unit) harness connector and stop lamp relay harness connector.
4. Check continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 15.
NO - Repair or replace error-detected parts.
15.CHECK STOP LAMP RELAY
Check stop lamp relay. SEE Component Inspection (Stop Lamp Relay).
Is the inspection result normal?
YES - GO TO 16.
NO - Repair or replace stop lamp relay.
16.CHECK STOP LAMP RELAY POWER SUPPLY (2)
1. Turn the ignition switch OFF.
2. Check voltage between stop lamp relay harness connector and ground.
3. Turn the ignition switch ON.
CAUTION:
Never start engine.
4. Check voltage between stop lamp relay harness connector and ground.
Is the inspection result normal?
YES - Check pin terminals and connection of stop lamp relay harness connector for abnormal conditions. Repair or replace error-detected parts.
NO - GO TO 17.
17.CHECK STOP LAMP RELAY CIRCUIT (2)
1. Turn the ignition switch OFF.
2. Check 10A fuse (#57).
3. Disconnect IPDM E/R harness connector.
4. Check IPDM E/R pin terminals for damage or loose connection with harness connector.
5. Check continuity between stop lamp relay harness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES - Perform trouble diagnosis for ignition power supply. Ignition Power Supply, "Wiring Diagram - IGNITION
POWER SUPPLY -".
NO - Repair or replace error-detected parts.
18.CHECK STOP LAMP RELAY POWER SUPPLY (3)
1. Turn the ignition switch OFF.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Turn the ignition switch ON.
CAUTION:
Never start engine.
4. Check voltage between stop lamp relay harness connector and ground.
Is the inspection result normal?
YES - GO TO 22.
NO - GO TO 19.
19.CHECK STOP LAMP RELAY CIRCUIT (3)
1. Turn the ignition switch OFF.
2. Disconnect stop lamp relay harness connector.
3. Check continuity between ABS actuator and electric unit (control unit) harness connector and stop lamp relay harness connector.
4. Check continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES - GO TO 20.
NO - Repair or replace error-detected parts.
20.CHECK STOP LAMP RELAY POWER SUPPLY (4)
1. Check voltage between stop lamp relay harness connector and ground.
2. Turn the ignition switch ON.
CAUTION:
Never start engine.
3. Check voltage between stop lamp relay harness connector and ground.
Is the inspection result normal?
YES - Check pin terminals and connection of stop lamp relay harness connector for abnormal conditions. Repair or replace error-detected parts.
NO - GO TO 21.
21.CHECK STOP LAMP RELAY CIRCUIT (4)
1. Check 10A fuse (#7).
2. Disconnect fuse block (J/B) harness connector.
3. Check fuse block (J/B) pin terminals for damage or loose connection with harness connector.
4. Check continuity between stop lamp relay harness connector and fuse block (J/B).
Is the inspection result normal?
YES - Perform trouble diagnosis for battery power supply. Battery Power Supply, "Wiring Diagram - BATTERY
POWER SUPPLY -".
NO - Repair or replace error-detected parts.
22.CHECK TERMINAL
Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - Replace ABS actuator and electric unit (control unit). Service and Repair.
NO - Repair or replace error-detected parts.
Component Inspection (Stop lamp Switch)
1.CHECK STOP LAMP SWITCH
1. Turn the ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity when stop lamp switch is operated.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace stop lamp switch. Removal And Installation.
Component Inspection (Stop Lamp Relay)
1.CHECK STOP LAMP RELAY
1. Apply 12 V to stop lamp relay connector terminal (1 and 2).
CAUTION:
- Never make the terminals short.
- Connect the fuse between the terminals when applying the voltage.
2. Check continuity between stop lamp relay connector terminals.
3. Check resistance between stop lamp relay connector terminals.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace stop lamp relay.