Toyota Camry (XV70): How To Proceed With Troubleshooting
Toyota Camry Repair Manual XV70 (2018-2024) / Steering / Steering Column / Heated Steering Wheel System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the heated steering wheel system.
PROCEDURE
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1. | VEHICLE BROUGHT TO WORKSHOP |
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2. | INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage with the ignition switch off.
Standard voltage:
11 to 14 V (Ignition switch off)
If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
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3. | PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
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4. | REPAIR OR REPLACE |
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5. | CONFIRMATION TEST |
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READ NEXT:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of pr
Components
COMPONENTS ILLUSTRATION
*1 STEERING WHEEL ASSEMBLY
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Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping"
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Diagnosis System
DIAGNOSIS SYSTEM DIAGNOSIS FUNCTION (a) If a malfunction is detected in the millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores DTCs without directly informing the driver, and sends malfunction signals to the systems that use the millimeter wave radar sensor assem
Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter
DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assemb
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