| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001509V |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - 10/2020] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM: C13A1; Short Circuit in Power Source Circuit; 2018 - 2020 MY Camry HV [07/2017 - 10/2020] | ||
|
DTC |
C13A1 |
Short Circuit in Power Source Circuit |
DESCRIPTION
The following DTCs are stored when a malfunction occurs in the parking brake ECU (brake actuator assembly).
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Memory |
Note |
|---|---|---|---|---|---|
|
C13A1 |
Short Circuit in Power Source Circuit |
Both of following conditions are met:
|
|
DTC stored |
An electric parking brake system malfunction is displayed on the multi-information display. |
DTC Detection Conditions
|
Vehicle Condition |
|||
|---|---|---|---|
|
Pattern 1 |
Pattern 2 |
||
|
Diagnosis Condition |
Power switch on (IG) |
○ |
- |
|
Electric parking brake switch (electric parking brake switch assembly) pulled to lock side with power switch off |
- |
○ |
|
|
Malfunction Status |
Parking brake ECU (brake actuator assembly) power source relay is shorted |
○ |
○ |
|
Detection Time |
Approximately 60 seconds |
Approximately 60 seconds |
|
|
Number of Trips |
1 trip |
1 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:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- The electric parking brake may still operate up to 20 seconds after the power switch is turned off. Before disconnecting connectors or fuses, turn the power switch off and wait 20 seconds or more.
- The parking brake indicator light blinks (red) when the power switch is turned on (IG) after replacing the parking brake ECU (brake actuator assembly). Operate the electric parking brake switch (electric parking brake switch assembly) to turn off the parking brake indicator light (red).
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (BEPB CIRCUIT) |
(a) Turn the power switch off.
(b) Disconnect the A44 parking brake ECU (brake actuator assembly) connector.
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
CHECK HARNESS AND CONNECTOR (PARKING BRAKE ECU (BRAKE ACTUATOR ASSEMBLY) - IG POWER SOURCE CIRCUIT) |
|
(a) Turn the power switch off. |
|
(b) Disconnect the A44 parking brake ECU (brake actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A44-26 (IG) - Body ground |
Power switch off |
Below 2.5 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
(a) Inspect the electric parking brake switch (electric parking brake switch assembly).
Click here
![2018 - 2024 MY Camry HV [07/2017 - ]; PARKING BRAKE: ELECTRIC PARKING BRAKE SWITCH: INSPECTION](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPLACE ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
|
|
4. |
CHECK HARNESS AND CONNECTOR (PARKING BRAKE ECU (BRAKE ACTUATOR ASSEMBLY) - ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)) |
(a) Disconnect the K37 electric parking brake switch (electric parking brake switch assembly) connector.
|
(b) Disconnect the A44 parking brake ECU (brake actuator assembly) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A44-14 (SWI1) - Body ground |
Always |
10 kΩ or higher |
|
A44-20 (SWO1) - Body ground |
Always |
10 kΩ or higher |
|
A44-24 (SWI2) - Body ground |
Always |
10 kΩ or higher |
|
A44-22 (SWO2) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|