Toyota Tacoma (2015-2018) Service Manual: Other System Malfunction (C1A63)

Toyota Tacoma (2015-2018) Service Manual / Pre-collision / Pre-collision System / Other System Malfunction (C1A63)

DESCRIPTION

The millimeter wave radar sensor assembly receives accelerator pedal position sensor signals from the ECM to determine if the accelerator pedal is being depressed. If the ECM detects a malfunction in the accelerator pedal position sensor or SFI system, the millimeter wave radar sensor assembly is notified via CAN communication and stores DTC C1A63.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A63	Other System Malfunction	With the ignition switch ON, the millimeter wave radar sensor assembly receives an accelerator pedal position sensor malfunction signal from the ECM for approximately 2 seconds or more.	SFI system

PROCEDURE

1.	GO TO SFI SYSTEM

HINT:

If DTC C1A63 is output by the pre-collision system, perform troubleshooting for the SFI system.

for 2TR-FE: Click here
for 2GR-FKS: Click here

END

Brake System Malfunction (C1A50)

DESCRIPTION When the pre-collision system is operating, the millimeter wave radar sensor assembly sends brake control signals to the skid control ECU (master cylinder solenoid)*1 or skid control ...

Brake Control Signal Mismatch (C1A69)

DESCRIPTION The skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 sends signals to the millimeter wave radar sensor assembly according to the brake con ...

Other materials:

Side Airbag Sensor RH Circuit Malfunction (B1620/21)
DESCRIPTION The side airbag sensor assembly RH consists of parts such as the safing sensor, the diagnostic circuit and the lateral deceleration sensor. When the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activate ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 2 ANTENNA CORD SUB-ASSEMBLY (a) Using hot-melt glue, install the No. 2 antenna cord sub-assembly as shown in the illustration. 2. INSTALL NO. 1 ROOF WIRE (w/ Vanity Light) (a) w/ EC Mirror: (1) Align the aiming tape as shown in the illustration. ...

Dtc Check / Clear
DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and freeze frame data. HINT: DTCs which are sto ...