| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EAAT |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): C137BA3; Brake System Control Module "A" System Voltage System Voltage High; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ] | ||
|
DTC |
C137BA3 |
Brake System Control Module "A" System Voltage System Voltage High |
DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation.
This DTC is stored when the +BS terminal voltage deviates due to a malfunction in a power supply or charging system circuit such as the battery or alternator circuit, etc.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C137BA3 |
Brake System Control Module "A" System Voltage System Voltage High |
+BS terminal voltage is more than 16.5 V for 1 second or more. |
|
WIRING DIAGRAM
Refer to DTC C137BA2.
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![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): C137BA2; Brake System Control Module "A" System Voltage System Voltage Low](/t3Portal/stylegraphics/info.gif)
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
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PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. |
|
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A39-30 (+BS) - Body ground |
Always |
11 to 14 V |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|