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 from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or generator circuit, etc.
The DTC is canceled when the +BS terminal voltage returns to normal.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1417 |
High Power Supply Voltage Malfunction |
Either of the following is detected:
|
|
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT BATTERY |
(a) Check the battery voltage.
Standard voltage:
11 to 14 V
NG | ![]() |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY |
|
2. |
CHECK TERMINAL VOLTAGE (+BS, GND1 TERMINAL) |
(a) Turn the ignition switch off.
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
(c) Disconnect the skid control ECU (brake actuator assembly) connector. |
|
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S1-38 (+BS) - Body ground |
Always |
11 to 14 V |
S1-38 (+BS) - S1-25 (GND1) |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly]) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (+BS, GND1 CIRCUIT) |
|
3. |
RECONFIRM DTC |
(a) Reconnect the S1 skid control ECU (brake actuator assembly) connector.
(b) Clear the DTCs (See page
).
(c) Turn the ignition switch off.
(d) Start the engine.
(e) Perform a road test.
(f) Check if the same DTC is recorded (See page
).
Result |
Proceed to |
---|---|
DTC C1417 is not output |
A |
DTC C1417 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
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On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
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(a) Check the wire harness.
(1) Disconnect the A34 air conditioner pressure sensor connector.
(2) Disconnect the A35 and A36 air conditioning amplifier assembly connector.
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