| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EXIY |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 02/2019] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): C13AD; Open in +B Circuit; 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019] | ||
|
DTC |
C13AD |
Open in +B Circuit |
DESCRIPTION
The parking brake ECU assembly is supplied with power to operate the motor via the +B and +B2 terminals.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Memory |
Note |
|---|---|---|---|---|---|
|
C13AD |
Open in +B Circuit |
Both of following conditions are met:
HINT: For details on the threshold value changes according to the auxiliary battery voltage value, refer to "Threshold Changes According to Auxiliary Battery Voltage". |
|
Yes |
An electric parking brake system malfunction is displayed on the multi-information display. |
DTC Detection Condition Combination Table: C13AD (Pattern 1, Pattern 2, Pattern 3, Pattern 4)
|
Vehicle Condition |
|||||
|
Pattern 1 |
Pattern 2 |
Pattern 3 |
Pattern 4 |
||
|
Diagnosis Condition |
Electric parking brake switch (integration control and panel assembly) is operated to lock side with power switch off |
○ |
○ |
- |
- |
|
Power switch on (IG) |
- |
- |
○ |
○ |
|
|
Malfunction Status |
Motor +B voltage is Mid when parking brake motor is not operating |
○ |
- |
○ |
- |
|
Motor +B voltage is Lo when parking brake motor is operating |
- |
○ |
- |
○ |
|
|
Detection Time |
Approximately 0.5 seconds |
Approximately 0.5 seconds |
Approximately 0.5 seconds |
Approximately 0.5 seconds |
|
|
Trip Count |
1 trip |
1 trip |
1 trip |
1 trip |
|
HINT:
- If the conditions match either of these patterns, a DTC will be output.
Threshold Changes According to Auxiliary Battery Voltage
|
*a |
Parking Brake Motor Not Operating |
*b |
Parking Brake Motor Operating |
|
*c |
Auxiliary Battery Voltage (V) |
*d |
+B and +B2 Terminal Voltage (V) |
|
*e |
Normal Range |
*f |
DTC Detection Range |
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.
- When replacing the parking brake ECU assembly, operate the electric parking brake switch (integration control and panel assembly) from the lock side to the release side, as the parking brake indicator light blinks when the power switch is first turned on (IG).
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (RH MOTOR +B VOLTAGE / LH MOTOR +B VOLTAGE) |
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG) and the Techstream on.
(d) Enter the following menus: Chassis / Electric Parking Brake / Data List.
(e) Check the Data List.
Chassis > Electric Parking Brake > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
|---|---|---|---|
|
RH Motor +B Voltage |
Parking brake motor RH (parking brake actuator assembly RH) +B voltage display |
Lo, Mid, Error or Hi |
Hi |
|
LH Motor +B Voltage |
Parking brake motor LH (parking brake actuator assembly LH) +B voltage display |
Lo, Mid, Error or Hi |
Hi |
Chassis > Electric Parking Brake > Data List
|
Tester Display |
|---|
|
RH Motor +B Voltage |
|
LH Motor +B Voltage |
| OK |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (PARKING BRAKE ECU ASSEMBLY - AUXILIARY BATTERY) |
(a) Turn the power switch off.
|
(b) Disconnect the parking brake ECU assembly connector. |
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M36-7 (+B) - Body ground |
Always |
11 to 14 V |
|
M36-12 (+B2) - Body ground |
Always |
11 to 14 V |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|