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.
PROCEDURE
HINT: If DTC C1A63 is output by the pre-collision system, perform troubleshooting for the SFI system.
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Toyota Tundra Service Manual > 1ur-fe Engine Control: Efi Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. REMOVE INTEGRATION RELAY 2. INSPECT INTEGRATION RELAY (EFI) NOTICE: Some relays are built into the integration relay. The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the ...
