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 > Meter / Gauge System: Lost Communication with Cruise Control Front Distance Range Sensor (U0235)
DESCRIPTION The combination meter assembly communicates with the millimeter assembly wave radar sensor assembly via the CAN line. DTC Code DTC Detection Condition Trouble Area U0235 When either of following conditions is detected: IG voltage 10.5 V or more No communication with millimeter assembly w ...

Toyota Tundra Owners Manual