Toyota Tacoma (2015-2018) Service Manual: High Power Supply Voltage Malfunction (C1417)
DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU (housed in the master cylinder solenoid) stores this DTC and the fail-safe function prohibits ABS/VSC/TRAC operation.
This DTC is stored when the IG1 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.
This DTC is cleared when the IG1 terminal voltage returns to normal.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1417 |
The IG1 terminal voltage is 17.4 V or higher for 0.8 seconds or more. |
|
WIRING DIAGRAM
Refer to DTC C1241 (See page .gif)
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (master cylinder solenoid), perform calibration
(See page ).
PROCEDURE
|
1. |
INSPECT SKID CONTROL ECU (IG1 TERMINAL) |
| NG | .gif) |
GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) |
|
.gif)
|
2. |
RECONFIRM DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Check for DTCs (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
DTC is not output |
B |
| A | |
REPLACE MASTER CYLINDER SOLENOID |
| B | |
USE SIMULATION METHOD TO CHECK |
Rear Speed Sensor RH Performance (C1411,C1412)
DESCRIPTION
Refer to DTCs C1401 and C1402 (See page ).
DTC Code
DTC Detection Condition
Trouble Area
C1411
C1412
One of the following ...
Acceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw
rate and acceleration (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembl ...
Other materials:
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY (for Vehicle not Involved
in Collision)
(a) Perform a diagnostic system check (See page
).
(b) With the lower No. 2 instrument panel airbag assembly ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT CAMSHAFT TIMING GEAR BOLT
(a) Remove the camshaft timing oil control solenoid assembly (See page
).
(b) Check that the plunger strokes when the plunger in the center of
the camshaft timing gear bolt is pressed.
Standard stroke:
4 ...
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT FENDER MUDGUARD (w/ Mudguard)
Click here
2. REMOVE FRONT FENDER WHEEL OPENING MOULDING (w/ Over Fender)
Click here
3. REMOVE FRONT NO. 1 WHEEL OPENING EXTENSION PAD (w/ Front Spoiler)
(a) Remove 9 screws and front No. 1 wheel opening extension ...
