Toyota Tundra Service Manual: Acc Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT MAIN BODY ECU (ACC RELAY)

(a) Measure the resistance of the ACC relay circuit.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
DD-47 - DD-8	When battery voltage is not applied between DD-45 and DD-62	10 kΩ or higher
DD-47 - DD-8	When battery voltage is applied between DD-45 and DD-62	Below 1 Ω

If the result is not as specified, replace the main body ECU.

Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Front Radar Sensor Incorrect Axial Gap (C1A11,C1A14)
DESCRIPTION When the system determines that the vehicle is driving straight ahead based on signals from the yaw rate and acceleration sensor (airbag sensor assembly), etc., the millimeter wave radar sensor assembly performs self-diagnosis to check if the sensor beam axis is misaligned. C1A11 is outp ...

Toyota Tundra Owners Manual