C1A62
DTC Logic
DTC DETECTION LOGIC
DTC REPRODUCTION PROCEDURE
1. PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn power switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.
2. CHECK DTC DETECTION
With CONSULT
1.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
2.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. PERFORM SELF-DIAGNOSIS (1)
With CONSULT
1.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
2.Perform "BRAKE" self-diagnosis.
"PAST" or "CRNT" shown in self-diagnosis results ("C1A62")?
YES ("PAST")-GO TO 2.
YES ("CRNT")-GO TO 6.
NO- INSPECTION END
2. INTERVIEW FROM THE CUSTOMER (1)
Check to see if there is a removal history of 12V battery or 12V battery terminals.
Is there a removal history of 12V battery or 12V battery terminals?
YES- GO TO 3.
NO- GO TO 6.
3. INTERVIEW FROM THE CUSTOMER (2)
Check to see if there is a lighting history of the brake system warning lamp (yellow).
Is there a lighting history of the brake system warning lamp (yellow)?
YES- GO TO 6.
NO- GO TO 4.
4. INTERVIEW FROM THE CUSTOMER (3)
Check to see if the customer has an experience of feeling unusual braking force (brake pedal operation).
Does the customer have an experience of feeling unusual braking force?
YES- GO TO 6.
NO- GO TO 5.
5. PERFORM SELF-DIAGNOSIS (2)
With CONSULT
1.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
2.Repeat step 1 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
3.Turn the power switch OFF.
4.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
5.Turn the power switch ON.
CAUTION:
Never engage READY state.
6.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
8.Release brake pedal.
9.Repeat steps 7 to 8 three times.
10.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 6.
NO- INSPECTION END [DTC "C1A62" is detected when12V battery terminals are disconnected after turning the power switch OFF with any door open (including back door) or without waiting 3 minutes after closing all doors (including back door).]
6. CHECK 12V BATTERY
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Check the 12V battery terminal connections. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery and
"Work Flow" Testing and Inspection.
4.Check the 12V battery. Refer to "Work Flow" Testing and Inspection.
Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace error-detected parts and GO TO 7.
7. PERFORM SELF-DIAGNOSIS (3)
With CONSULT
1.Connect 12V battery cable to negative terminal.
2.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
3.Repeat step 2 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
4.Turn the power switch OFF.
5.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
6.Turn the power switch ON.
CAUTION:
Never engage READY state.
7.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
8.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
9.Release brake pedal.
10.Repeat steps 8 to 9 three times.
11.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 8.
NO- INSPECTION END
8. CHECK CONNECTOR TERMINALS
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Disconnect the electrically-driven intelligent brake unit harness connector, then check for failures of pin terminals and connections.
Is the inspection result normal?
YES- GO TO 9.
NO- Repair or replace error-detected parts and GO TO 9.
9. PERFORM SELF-DIAGNOSIS (4)
With CONSULT
1.Connect the electrically-driven intelligent brake unit harness connector.
2.Connect 12V battery cable to negative terminal.
3.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
4.Repeat step 3 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
5.Turn the power switch OFF.
6.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Turn the power switch ON.
CAUTION:
Never engage READY state.
8.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
9.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
10.Release brake pedal.
11.Repeat steps 9 to 10 three times.
12.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 10.
NO- INSPECTION END
10. CHECK POWER SWITCH ON POWER SUPPLY
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Disconnect the electrically-driven intelligent brake unit harness connector.
5.Connect 12V battery cable to negative terminal.
6.Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.
7.Turn the power switch ON.
CAUTION:
Never engage READY state.
8.Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.
Is the inspection result normal?
YES- GO TO 13.
NO- GO TO 11.
11. CHECK POWER SWITCH ON POWER SUPPLY CIRCUIT
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Check the 15A fuse (#62).
5.Disconnect IPDM E/R harness connector.
6.Check the continuity between electrically-driven intelligent brake unit and IPDM E/R.
7.Check the continuity between electrically-driven intelligent brake unit harness connector and ground.
Is the inspection result normal?
YES- Perform trouble diagnosis for power ON power supply. Refer to "Wiring Diagram ON POWER SUPPLY -" On Power Supply.
NO- Repair or replace error-detected parts and GO TO 12.
12. PERFORM SELF-DIAGNOSIS (5)
With CONSULT
1.Connect the electrically-driven intelligent brake unit harness connector.
2.Connect IPDM E/R harness connector.
3.Connect 12V battery cable to negative terminal.
4.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
5.Repeat step 4 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
6.Turn the power switch OFF.
7.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
8.Turn the power switch ON.
CAUTION:
Never engage READY state.
9.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
10.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
11.Release brake pedal.
12.Repeat steps 10 to 11 three times.
13.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 13.
NO- INSPECTION END
13. CHECK 12V BATTERY POWER SUPPLY
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Disconnect the electrically-driven intelligent brake unit harness connector.
5.Connect 12V battery cable to negative terminal.
6.Check the voltage between the electrically-driven intelligent brake unit harness connector terminals.
7.Turn the power switch ON.
CAUTION:
Never engage READY state.
8.Check the voltage between the electrically-driven intelligent brake unit harness connector terminals.
Is the inspection result normal?
YES- GO TO 16.
NO- GO TO 14.
14. CHECK 12V BATTERY POWER SUPPLY CIRCUIT
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Check the 60A fusible link (#F).
5.Check the continuity and for short circuit between harness connector terminal 1 of electrically-driven intelligent brake unit and 60A fusible link (#F).
6.Check the continuity and for short circuit between harness connector terminal 2 of electrically-driven intelligent brake unit and 60A fusible link (#F).
7.Check the 10A fuse (#78).
8.Check the continuity and for short circuit between harness connector terminal 11 of electrically-driven intelligent brake unit and 10A fuse (#78).
Is the inspection result normal?
YES- Perform trouble diagnosis for 12V battery power supply. Refer to "Wiring Diagram BATTERY POWER SUPPLY -" Battery Power Supply.
NO- Repair or replace error-detected parts and GO TO 15.
15. PERFORM SELF-DIAGNOSIS (6)
With CONSULT
1.Connect the electrically-driven intelligent brake unit harness connector.
2.Connect 12V battery cable to negative terminal.
3.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
4.Repeat step 3 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
5.Turn the power switch OFF.
6.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Turn the power switch ON.
CAUTION:
Never engage READY state.
8.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
9.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
10.Release brake pedal.
11.Repeat steps 9 to 10 three times.
12.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 16.
NO- INSPECTION END
16. CHECK GROUND CIRCUIT
1.Turn the power switch OFF.
2.Get out of the vehicle and close all doors (including back door).
3.Disconnect 12V battery cable from negative terminal. Refer to "Precaution for Removing 12V Battery" Precaution For Removing 12V Battery.
4.Disconnect the electrically-driven intelligent brake unit harness connector.
5.Check the continuity between electrically-driven intelligent brake unit and ground.
Is the inspection result normal?
YES- GO TO 18.
NO- Repair or replace error-detected parts and GO TO 17.
17. PERFORM SELF-DIAGNOSIS (7)
With CONSULT
1.Connect the electrically-driven intelligent brake unit harness connector.
2.Connect 12V battery cable to negative terminal.
3.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
4.Repeat step 3 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
5.Turn the power switch OFF.
6.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Turn the power switch ON.
CAUTION:
Never engage READY state.
8.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
9.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
10.Release brake pedal.
11.Repeat steps 9 to 10 three times.
12.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 18.
NO- INSPECTION END
18. CHECK DATA MONITOR
With CONSULT
1.Connect the electrically-driven intelligent brake unit harness connector.
2.Connect 12V battery cable to negative terminal.
3.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
4.Repeat step 3 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
5.Select "BRAKE" and "DATA MONITOR" according this order.
6.Check the "MOTOR POWER SUPPLY" and "CONTROL MODULE POWER". Refer to "Reference Value" Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES- GO TO 19.
NO- Replace the electrically-driven intelligent brake unit. Refer to "Removal and installation" Removal And Installation.
19. PERFORM SELF-DIAGNOSIS (8)
With CONSULT
1.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
2.Repeat step 1 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
3.Turn the power switch OFF.
4.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
5.Turn the power switch ON.
CAUTION:
Never engage READY state.
6.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
8.Release brake pedal.
9.Repeat steps 7 to 8 three times.
10.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- GO TO 20.
NO- INSPECTION END
20. CHECK BCM SYSTEM
With CONSULT
Perform self-diagnosis for "BCM". Refer to "BCM : CONSULT Function (BCM BCM)" BCM.
Is any DTC detected?
YES- Check the DTC. GO TO 21.
NO- Replace the electrically-driven intelligent brake unit. Refer to "Removal and installation" Removal And Installation.
21. PERFORM SELF-DIAGNOSIS (9)
With CONSULT
1.Turn the power switch OFF to ON.
CAUTION:
Never engage READY state.
2.Repeat step 1 two or more times.
CAUTION:
Be sure to wait for 5 seconds or more after turning the power switch OFF.
3.Turn the power switch OFF.
4.Get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
5.Turn the power switch ON.
CAUTION:
Never engage READY state.
6.Erase self-diagnosis result of "BRAKE".
CAUTION:
After erasing self-diagnosis results, turn the power switch OFF, get out of the vehicle, close all doors (including back door), and wait for 3 minutes or more.
7.Depress brake pedal by 100 mm (3.94 in) or more, and hold the position for 5 seconds or more.
8.Release brake pedal.
9.Repeat steps 7 to 8 three times.
10.Perform "BRAKE" self-diagnosis.
Is DTC "C1A62" detected?
YES- Replace the electrically-driven intelligent brake unit. Refer to "Removal and installation" Removal And Installation.
NO- INSPECTION END