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:

Slave Module Horizontal Axis Misalignment (C1AC2)
DESCRIPTION This DTC is stored when the angle of the blind spot monitor sensor RH deviates more than the allowable range from the horizontal axis. HINT: If drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor ...

Reassembly
REASSEMBLY PROCEDURE 1. INSPECT CENTER NO. 2 SUPPORT BEARING ASSEMBLY (a) When turning the center No. 2 support bearing assembly with your hand, check that it turns smoothly without catching and that there are no cracks or damage. If there are any defects, replace it. 2. INSTALL CENTER NO. ...

Initialization
INITIALIZATION 1. RESET MEMORY NOTICE: Perform Reset Memory (AT initialization) when replacing the automatic transmission assembly, transmission valve body assembly or any of the shift solenoid valves. Reset Memory can be performed only with the Techstream. HINT: The E ...