Brake Hold Standby Indicator Light Circuit [09/2018 - 10/2023]: Procedure
- PRE-CHECK
- If the brake hold standby indicator light does not illuminate even though the brake hold switch is pushed, check that the brake hold function operation conditions are met.
- The driver side door is closed.
- The driver side seat belt is fastened.
- The system is normal.
HINT:
If a malfunction occurs in one of the following systems, the brake hold operated indicator light will blink. If this occurs, perform troubleshooting on the malfunctioning system.
- Brake system
- Electric parking brake system
- SFI system
Result
Proceed to NEXT
Result:
NEXT
See step 2
- If the brake hold standby indicator light does not illuminate even though the brake hold switch is pushed, check that the brake hold function operation conditions are met.
- INSPECT COMBINATION METER ASSEMBLY
- Connect the Techstream to the DLC3.
- Turn the engine switch off.
- Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream.
Refer to DATA LIST / ACTIVE TEST [12/2017 - 10/2020] , or refer to DATA LIST / ACTIVE TEST [10/2020 - 10/2023]
for Sport Package:
Body Electrical > Combination Meter > Active Test
Tester Display Brake Hold Indicator except Sport Package:
Body Electrical > Combination Meter > Active Test
Tester Display Multi Display Default Screen - Check the combination meter assembly.
OK
for Sport Package
The brake hold standby indicator light turns on or off in accordance with the Techstream operation
except Sport Package
The multi-information display ON or OFF in accordance with the Techstream operation
Result
Proceed to OK NG
Result:
NG
INSPECT METER / GAUGE SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 10/2023]
Result:
OK
See step 3
- INSPECT BRAKE HOLD SWITCH
- Turn the engine switch off.
*a Component without harness connected
(Brake Hold Switch) - Disconnect the GG2 brake hold switch connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition GG2- 3 - GG2- 4 Switch pushed Below 1 Ω GG2- 3 - GG2- 4 Switch not pushed 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
See step 5
Result:
OK
See step 4
- Turn the engine switch off.
- CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - BRAKE HOLD SWITCH)
- Disconnect the A9 skid control ECU (brake actuator assembly) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A9-3 (PKB) - GG2- 3 Always Below 1 Ω A9-3 (PKB) or GG2- 3 - Body ground Always 10 kΩ or higher GG2- 4 - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [09/2018 - 10/2020] , or refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- INSPECT SWITCH WIRE
- Disconnect the G7 switch wire.
*1 Switch Wire *a Front view of wire harness connector(to Vehicle Side Connector) *b Front view of wire harness connector(to Switch Connector) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G7- 3 (+B) - GG2- 3 Always Below 1 Ω G7- 3 (+B) or GG2- 3 - Body ground Always 10 kΩ or higher G7- 6 (E) - GG2- 4 Always Below 1 Ω G7- 6 (E) or GG2- 4 - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE BRAKE HOLD SWITCH. Refer to REMOVAL [12/2017 - 10/2022] , or refer to REMOVAL [10/2022 - ]
Result:
NG
REPLACE SWITCH WIRE. Refer to REMOVAL [12/2017 - 10/2022] , or refer to REMOVAL [10/2022 - ]
- Disconnect the G7 switch wire.