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Toyota Sienna Service Manual: Dynamic laser cruise control system

Toyota Sienna Service Manual / Cruise control / Dynamic laser cruise control system

TC and CG Terminal Circuit
DESCRIPTION Connecting terminals TC and CG of the DLC3 causes the system to enter the self-diagnostic mode. If a malfunction is present, DTCs will be output. HINT: When a particular warning li ...

Precaution
Keep in mind the following points when inspecting the dynamic laser cruise control system.  As there is a limitation on the vehicle-to-vehicle distance controlling capability, do not overl ...

Other materials:

On-vehicle inspection
1. INSPECT SPEEDOMETER  Check the operation.  Using a speedometer tester, check the speedometer indication according to the table below. Reference: mph (U.S.A.) Reference: km/h (Canada) NOTICE: Tire wear as well as over or under inflation will cause errors. ...

Diagnosis system
1. CHECK DLC3  The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and meets the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition s ...

Intake Air Temperature Circuit
DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the IAT is low, the resistance of the thermistor i ...

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