P3113
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.
2. PERFORM DTC CONFIRMATION PROCEDURE
1.Set the vehicle to READY.
2.Drive the vehicle.
CAUTION:
Always drive the vehicle at a safe speed.
3.Fully depress the brake pedal.
4.Check DTC.
Is DTC detected?
YES- Proceed to .
NO- INSPECTION END
Diagnosis Procedure
1. INSPECTION START
Check which type the vehicle is equipped with.
Which type?
Without ICC models-GO TO 2.
With ICC models-GO TO 10.
2. CHECK BRAKE SWITCH OPERATION
With CONSULT
1.Turn ignition switch ON.
2.Select "ASCD BRAKE SW" in "DATA MONITOR" mode of "EV/HEV" using CONSULT.
3.Check that monitor indication as per the following condition.
Without CONSULT
1.Turn ignition switch ON.
2.Check the voltage between HPCM harness connector and ground as per the following.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 4.
3. CHECK STOP LAMP SWITCH OPERATION
1.Turn ignition switch OFF.
2.Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- GO TO 7.
4. CHECK BRAKE SWITCH POWER SUPPLY
1.Turn ignition switch OFF.
2.Disconnect brake switch harness connector.
3.Turn ignition switch ON.
4.Check the voltage between brake switch harness connector and ground.
Is the inspection result normal?
YES- GO TO 5.
NO- Perform the trouble diagnosis for power supply circuit.
5. CHECK BRAKE SWITCH SIGNAL CIRCUIT
1.Disconnect HPCM harness connector.
2.Check the continuity between brake switch harness connector and HPCM harness connector.
Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace error-detected parts.
6. CHECK BRAKE SWITCH
.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- Replace brake switch. Removal and Installation.
7. CHECK STOP LAMP SWITCH POWER SUPPLY
1.Disconnect stop lamp switch harness connector.
2.Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES- GO TO 8.
NO- Perform trouble diagnosis for power supply circuit.
8. CHECK STOP LAMP SWITCH SIGNAL CIRCUIT
1.Disconnect HPCM harness connector.
2.Check the continuity between stop lamp switch harness connector and HPCM harness connector.
3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 9.
NO- Repair or replace error-detected parts.
9. CHECK STOP LAMP SWITCH
.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- Replace stop lamp switch. Removal and Installation.
10. CHECK DTC WITH "ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT"
Perform self-diagnosis of electrically-driven intelligent brake unit. Scan Tool Testing and Procedures.
Is the inspection result normal?
YES- GO TO 11.
NO- Perform diagnosis procedure corresponding to DTC indicated.
11. CHECK BRAKE SWITCH OPERATION
With CONSULT
1.Turn ignition switch ON.
2.Select "ASCD BRAKE SW" in "DATA MONITOR" mode of "EV/HEV" using CONSULT.
3.Check that monitor indication as per the following condition.
Without CONSULT
1.Turn ignition switch ON.
2.Check the voltage between HPCM harness connector and ground as per the following.
Is the inspection result normal?
YES- GO TO 12.
NO- GO TO 13.
12. CHECK STOP LAMP SWITCH OPERATION
1.Turn ignition switch OFF.
2.Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- GO TO 17.
13. CHECK STOP LAMP OFF RELAY 1
.
Is the inspection result normal?
YES- GO TO 14.
NO- Replace stop lamp OFF relay 1.
14. CHECK STOP LAMP OFF RELAY 2
.
Is the inspection result normal?
YES- GO TO 15.
NO- Replace stop lamp OFF relay 2.
15. CHECK BRAKE SWITCH POWER SUPPLY
1.Turn ignition switch OFF.
2.Disconnect brake switch harness connector.
3.Turn ignition switch ON.
4.Check the voltage between brake switch harness connector and ground.
Is the inspection result normal?
YES- GO TO 16.
NO- Perform the trouble diagnosis for power supply circuit.
16. CHECK BRAKE SWITCH SIGNAL CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect HPCM harness connector.
3.Check the continuity between brake switch harness connector and HPCM harness connector.
Is the inspection result normal?
YES- GO TO 21.
NO- Repair or replace error-detected parts.
17. CHECK STOP LAMP OFF RELAY 1 POWER SUPPLY
Check the voltage between stop lamp OFF relay 1 harness connector and ground.
Is the inspection result normal?
YES- GO TO 18.
NO- Perform the trouble diagnosis for power supply circuit.
18. CHECK STOP LAMP SWITCH POWER SUPPLY
1.Disconnect stop lamp switch harness connector.
2.Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES- GO TO 20.
NO- GO TO 19.
19. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1.Disconnect stop lamp OFF relay 1 harness connector.
2.Check the continuity between stop lamp switch harness connector and stop lamp OFF relay 1 harness connector.
3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 23.
NO- Repair or replace error-detected parts.
20. CHECK STOP LAMP SWITCH SIGNAL CIRCUIT
1.Disconnect HPCM harness connector.
2.Check the continuity between stop lamp switch harness connector and HPCM harness connector.
3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 22.
NO- Repair or replace error-detected parts.
21. CHECK BRAKE SWITCH
.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- Replace brake switch. Removal and Installation.
22. CHECK STOP LAMP SWITCH
.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- Replace stop lamp switch. Removal and Installation.
23. CHECK STOP LAMP OFF RELAY 1
P1572.
Is the inspection result normal?
YES- Perform Intermittent Incident.
NO- Replace stop lamp OFF relay 1.
Component Inspection (Brake Switch)
1. CHECK BRAKE SWITCH-1
1.Turn ignition switch OFF.
2.Disconnect brake switch harness connector.
3.Check the continuity between brake switch terminals as per the following condition.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 2.
2. CHECK BRAKE SWITCH-2
1.Adjust brake switch installation. Adjustments.
2.Check the continuity between brake switch terminals as per the following condition.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace brake switch. Removal and Installation.
Component Inspection (Stop Lamp Switch)
1. CHECK STOP LAMP SWITCH-1
1.Turn ignition switch OFF.
2.Disconnect stop lamp switch harness connector.
3.Check the continuity between stop lamp switch terminals as per the following conditions.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 2.
2. CHECK STOP LAMP SWITCH-2
1.Adjust stop lamp switch installation. (Adjustments.)
2.Check the continuity between stop lamp switch terminals as per the following conditions.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace stop lamp switch. Exploded View.
Component Inspection (Stop Lamp OFF Relay 1)
1. CHECK STOP LAMP OFF RELAY 1
1.Turn ignition switch OFF.
2.Remove stop lamp OFF relay 1.
3.Check the continuity between stop lamp OFF relay 1 terminals as per the following condition.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace stop lamp OFF relay 1.
Component Inspection (Stop Lamp OFF Relay 2)
1. CHECK STOP LAMP OFF RELAY 2
1.Turn ignition switch OFF.
2.Remove stop lamp OFF relay 2.
3.Check the continuity between stop lamp OFF relay 2 terminals as per the following condition.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace stop lamp OFF relay 2.