P0110 · blink 24 – INTAKE AIR TEMP. CIRCUIT MALFUNCTION

System

EFI 3ZZ-FE

Dashboard light

Malfunction indicator lamp (Check Engine)

Check-engine blink code

24

Applies to

3ZZ-FE 1.6 (PK SE Saloon 1.6 2002-05 ZZE121)

Description

INTAKE AIR TEMP. CIRCUIT MALFUNCTION

Detection / symptoms

Detection: Open or short in intake air temp. sensor circuit

Possible causes

Open or short in intake air temp. sensor circuit; Intake air temp. sensor (inside air flow meter); Engine ECU

What to check

Workshop check order (RM821E): READ VALUE OF INTAKE AIR TEMPARATURE -> CHECK HARNESS AND CONNECTOR(CHECK FOR OPEN) -> INSPECT ECU(CHECK FOR OPEN) -> CHECK HARNESS AND CONNECTOR(CHECK FOR SHORT) -> INSPECT ECU(CHECK FOR SHORT) -> INSPECT ECU(ENGINE ECU CONNECTOR) -> CHECK INTAKE AIR FLOW METER SUB−ASSY -> CHECK HARNESS AND CONNECTOR(OPEN AND SHORT BETWEEN THE TERMI-

Confidence

high (official Toyota RM821E)

From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights

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