Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018YBN
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM: C1A63; Other System Malfunction; 2018 - 2020 MY Sienna [11/2017 -        ]

DTC

C1A63

Other System Malfunction

DESCRIPTION

The driving support ECU 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 driving support ECU 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 driving support ECU assembly receives an accelerator pedal position sensor malfunction signal from the ECM for approximately 5 seconds or more.
  • SFI system
  • Driving support ECU assembly

PROCEDURE

1.

GO TO SFI SYSTEM

HINT:

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

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

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