Test 1: Ecu Power Source Circuit (Wireless Door Lock Control System)

When the wireless door lock main switch is ON, battery voltage is applied to terminal +B of the wireless door lock ECU, causing the ECU to operate. When the wireless door lock main switch is OFF, battery voltage is not applied to terminal +B and the ECU does not operate.

Fig 1: Test 1: ECU Power Source Circuit Test (Wireless Door Lock Control System) - 1 Of 3

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Fig 2: Test 1: ECU Power Source Circuit Test (Wireless Door Lock Control System) - 2 Of 3

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Fig 3: Test 1: ECU Power Source Circuit Test (Wireless Door Lock Control System) - 3 Of 3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002