Toyota Tacoma manuals

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

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:

Adjustment
ADJUSTMENT CAUTION / NOTICE / HINT HINT: Centering bolts are used to mount the hood hinge and hood lock assembly. The hood and hood lock assembly cannot be adjusted with the centering bolts installed. Substitute the centering bolts with standard bolts when making adjustments ...

Disposal
DISPOSAL PROCEDURE 1. DISPOSE OF FRONT SHOCK ABSORBER ASSEMBLY (a) Fully extend the shock absorber piston rod, and fix it at an angle in a vise or similar tool. (b) Using a drill or similar tool, slowly make a hole in the shaded area shown in the illustration, and discharge the gas inside. ...

Lost Communication with ECM / PCM "A" (U0100,U0126,U0129,U0142)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor. HINT: If CAN communication system DTCs are stored, they may also be stored for other systems. DTC Code DTC Detection Condition ...

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