Toyota Tacoma (2015-2018) Service Manual: Engine Control System Malfunction (C1201)
DESCRIPTION
If a malfunction in the engine control system is detected, VSC and TRAC operations are prohibited by the fail-safe function.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1201 |
Engine Control System Malfunction |
A malfunction signal is received from the ECM. |
Engine control system |
PROCEDURE
|
1. |
CHECK DTC (ENGINE CONTROL SYSTEM) |
(a) Check if any engine control system DTC is output.
Result|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| A | .gif) |
USE SIMULATION METHOD TO CHECK |
| B | |
GO TO ENGINE CONTROL (DIAGNOSTIC TROUBLE CODE CHART) |
SM Solenoid Circuit (C1225,C1468,C1469,C146A,C146B)
DESCRIPTION
These solenoids turn on when signals are received from the skid control ECU (brake
actuator assembly) and they control the pressure acting on the wheel cylinders to
control the brakin ...
ECM Communication Circuit Malfunction (C1203)
DESCRIPTION
The circuit is used to send TRAC and VSC control information from the skid control
ECU (brake actuator assembly) to the ECM, and engine control information from the
ECM to the skid co ...
Other materials:
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT REAR AIRBAG SENSOR (for Vehicle not Involved in Collision)
(a) Perform a diagnostic system check (See page
).
2. INSPECT REAR AIRBAG SENSOR (for Vehicle Involved in Collision and Airbag has
not Deployed)
CAUTION:
For rear airbag sensor removal and ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE FRONT LICENSE PLATE BRACKET
(a) Remove the 2 screws and front license plate bracket.
2. REMOVE NO. 4 ENGINE ROOM WIRE (w/ Fog Light)
(a) Disconnect the 2 connectors.
...
Front Camera Module Incorrect Axial Gap (C1AA8,C1AA9)
DESCRIPTION
If the forward recognition camera detects that the forward recognition camera
axis has deviated, DTC C1AA8 is stored. Also, if Forward Recognition Camera Axis
Adjustment is not performed after installing the forward recognition camera, DTC
C1AA9 is stored.
DTC No.
...