Dtc C1A63 Accelerator Pedal Position Sensor Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Pre-Crash Safety. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)

CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

DTC C1A63 Accelerator Pedal Position Sensor Circuit


DESCRIPTION

The driving support ECU assembly receives accelerator pedal position sensor signals from the ECM to determine if acceleration is being requested by the driver. If the ECM detects a malfunction in the accelerator pedal position sensor, the driving support ECU assembly is notified via CAN communication and stores DTC C1A63.

DTC No.
DTC Detection Condition
Trouble Area
C1A63
While the engine switch is on (IG), the driving support ECU assembly receives a throttle sensor malfunction signal from the ECM continuously for approximately 1.3 seconds or more.
  1. SFI system
  2. Driving support ECU assembly

INSPECTION PROCEDURE

NOTICE:
  1. When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  2. First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting.
    1. for LHD: Click here
    2. for RHD: Click here
1.CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Engine and ECT / SFI system / Trouble Codes.

  1. Check for DTCs.

    1. for 1VD-FTV (w/ DPF): Click here
    2. for 1VD-FTV (w/o DPF): Click here
    3. for 1UR-FE: Click here
    4. for 3UR-FE: Click here
Result
Result
Proceed to
SFI system DTCs are not output
A
EFD system DTCs are output (for 1VD-FTV (w/ DPF))
B
EFD system DTCs are output (for 1VD-FTV (w/o DPF))
C
SFI system DTCs are output (for 1UR-FE)
D
SFI system DTCs are output (for 3UR-FE)
E


B
GO TO ECD SYSTEM (Click here)

C
GO TO ECD SYSTEM (Click here)

D
GO TO SFI SYSTEM (Click here)

E
GO TO SFI SYSTEM (Click here)
A


2.CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body Electrical / Pre-Crash 2 / Trouble Codes.

  1. Clear the DTCs (Click here).

  1. Make sure that the DTC detection conditions are met.

    HINT:
    If the detection conditions are not met, the system cannot detect the malfunction.

  1. Check for DTCs (Click here).

Result
Result
Proceed to
DTC C1A63 is output
A
DTC C1A63 is not output
B


B
USE SIMULATION METHOD TO CHECK (SYMPTOM SIMULATION) (Click here)
A

REPLACE DRIVING SUPPORT ECU ASSEMBLY (Click here)