PARKING BRAKE ELECTRIC PARKING BRAKE SYSTEM(for Gasoline Model) C060962 Electric Parking Brake Switch Signal Compare Failure
DESCRIPTION
When the electric parking brake switch is pulled, a lock request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch is pushed, a release request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| C060962 | Electric Parking Brake Switch Signal Compare Failure | ·
Open or short detected in parking brake switch circuit for 1 second or more ·
Stuck parking brake switch detected (when parked: 30 seconds, when driving: 1 second, during engine stall: 1 second) ·
Stuck parking brake switch detected 3 times in succession when being operated |
·
Electric parking brake switch (electric parking brake switch assembly) ·
Wire harness and connector ·
Skid control ECU (brake actuator assembly) |
DTC stored | Brake/EPB | A | An electric parking brake system malfunction is displayed on the multi-information display. |
| Vehicle Condition | |||||||
|---|---|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Vehicle is stopped | - | - | ○ | - | - | - |
| Vehicle is being driven | - | - | - | ○ | - | - | |
| During initial check | - | - | - | - | ○ | - | |
| Parking brake switch is being operated | - | - | - | - | - | ○ | |
| Malfunction Status | Open detected in parking brake switch circuit | ○ | - | - | - | - | - |
| Short detected in parking brake switch circuit | - | ○ | - | - | - | - | |
| Stuck parking brake switch detected | - | - | ○ | ○ | ○ | ○ | |
| Detection Time | 1 second or more | 1 second or more | 30 seconds or more | 1 second or more | 1 second or more | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | 3 trip | |
- HINT:
-
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
-
If the electric parking brake switch is held near the lock position but not fully in the lock position for 1 second or more, a DTC may be stored due to one of the two contacts being ON while the other is OFF. (This is not a system malfunction.)
PROCEDURE
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Chassis / Brake/EPB / Data List.
- Chassis > Brake/EPB > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note EPB Switch Electric parking brake switch (electric parking brake switch assembly) input Neutral / Apply / Release / Unknown Neutral: Lock switch and release switch are off
Apply: Lock switch on
Release: Release switch onWhen not normal, electric parking brake switch (electric parking brake switch assembly) release side system may be malfunctioning
- HINT:
-
EPB stands for electric parking brake.
- Chassis > Brake/EPB > Data List
-
Tester Display EPB Switch - 50003 435 142
Operate the electric parking brake switch assembly and check that the value of "EPB Switch" in the Data List changes between Apply and Release in accordance with the operation of the switch.
- OK:
The value of EPB Switch changes between Apply and Release in accordance with switch operation.
- Result:
Proceed to OK NG
OK
NG
Clear the DTCs.
- Chassis > Brake/EPB > Clear DTCs
- 50002 435
- Result:
Proceed to NEXT
NEXT
Check for DTCs.
- Chassis > Brake/EPB > Trouble Codes
- 50001 435
- Result:
Result Proceed to DTCs are output A DTCs are not output B
A
B
- Result:
Proceed to OK NG
OK
NG
Pre-procedure1
Disconnect the E29 electric parking brake switch (electric parking brake switch assembly) connector.
Disconnect the A40 skid control ECU (brake actuator assembly) connector.
Procedure1
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(A40,E29)Location & Routingewd_type=routing;type=c,c;code=A40,E29
Click Connector(A40)Engine Compartment>Engine Room Main Wire / Transmission Wire>Brake Actuator Assemblyewd_type=component;type=c;code=A40;pinno=31,32,15,16
Click Connector(E29)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Electric Parking Brake Switch Assemblyewd_type=component;type=c;code=E29;pinno=7,8,1,2
A40-31 (SWI1) - E29-7 (SWI1) Always Below 1 Ω A40-32 (SWO1) - E29-8 (SWO1) Always Below 1 Ω A40-15 (SWI2) - E29-1 (SWI2) Always Below 1 Ω A40-16 (SWO2) - E29-2 (SWO2) Always Below 1 Ω A40-31 (SWI1) or E29-7 (SWI1) - Body ground Always 10 kΩ or higher A40-32 (SWO1) or E29-8 (SWO1) - Body ground Always 10 kΩ or higher A40-15 (SWI2) or E29-1 (SWI2) - Body ground Always 10 kΩ or higher A40-16 (SWO2) or E29-2 (SWO2) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
Post-procedure1
None
OK
NG
Pre-procedure1
None
Procedure1
Clear the DTCs.
- Chassis > Brake/EPB > Clear DTCs
- 50002 435
- Result:
Proceed to NEXT
Post-procedure1
Turn the ignition switch off.
NEXT
Check for DTCs.
- Chassis > Brake/EPB > Trouble Codes
- 50001 435
- Result:
Result Proceed to DTCs are output A DTCs are not output B
A
B