| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AZ8L |
| Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - 08/2020] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): C1417; IG1 Voltage Supply too High; 2019 - 2020 MY Avalon [04/2018 - 08/2020] | ||
|
DTC |
C1417 |
IG1 Voltage Supply too 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 |
|---|---|---|---|
|
C1417 |
IG1 Voltage Supply too High |
+BS terminal voltage is more than 16.5 V for 1 second or more. |
|
WIRING DIAGRAM
Refer to DTC C1241.
Click here
![2019 - 2020 MY Avalon [04/2018 - 08/2020]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): C1241; Low or High Power Supply Voltage](/t3Portal/stylegraphics/info.gif)
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration.
Click here
- Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CHECK BATTERY |
(a) Check the battery voltage.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Positive (+) terminal - Negative (-) terminal |
Engine switch off |
11 to 14 V |
| NG |
|
|
|
2. |
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 A28 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 |
|---|---|---|
|
A28-30 (+BS) - Body ground |
Always |
11 to 14 V |
|
A28-30 (+BS) - A28-46 (GND1) |
Always |
11 to 14 V |
|
A28-36 (IG1) - Body ground |
Engine switch on (IG) |
11 to 14 V |
|
A28-36 (IG1) - A28-46 (GND1) |
Engine switch on (IG) |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
|
3. |
RECONFIRM DTC |
(a) Turn the engine switch off.
(b) Reconnect the A28 skid control ECU (brake actuator assembly) connector.
(c) Clear the DTCs.
Chassis > ABS/VSC/TRAC/EPB > Clear DTCs
(d) Turn the engine switch off.
(e) Start the engine.
(f) Perform a road test.
(g) Check if the same DTC is output.
Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C1417 is not output |
A |
|
C1417 is output |
B |
| A |
|
| B |
|
|
|