Toyota Venza: Air Conditioning Unit

Back-up Power Source Circuit

DESCRIPTION The back-up power source circuit for the A/C amplifier is shown below. Power is supplied even when the ignition switch is turned off. The power is used for diagnostic trouble code mem ...

Components

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Other materials about Toyota Venza:

Inspection
INSPECTION PROCEDURE 1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (a) Inspect operation of the electrochromic inner mirror. (1) Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead to terminal 2. (2) Press the AUTO switch. ...

Low Power Supply Voltage (C1241/94)
DESCRIPTION If a malfunction in the power source circuit occurs, or a malfunction in communication with the skid control ECU or in a speed sensor occurs, the AWD control ECU will prohibit operations by the fail-safe function. DTC No. ...

Compressor Lock Sensor Circuit (B1422/22)
SYSTEM DESCRIPTION The ECM sends the engine speed signal to the A/C amplifier via CAN communication. The A/C amplifier reads the difference between compressor speed and engine speed. When the difference becomes too large, the A/C amplifier determines that ...