Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Terminals Of Ecu

Toyota Corolla Cross (2022-2025) Service Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System / Terminals Of Ecu

TERMINALS OF ECU

CHECK TIRE PRESSURE WARNING ECU AND RECEIVER

*A

w/ Smart Key System

*B

w/o Smart Key System

*a

Front view of wire harness connector

(to Tire Pressure Warning ECU and Receiver)

-

-

(a) Disconnect the O209*1 or O221*2 tire pressure warning ECU and receiver connector and measure the voltage or resistance on the wire harness side.

  • *1: w/ Smart Key System
  • *2: w/o Smart Key System
w/ Smart Key System

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

O209-1 (IGR) - O209-12 (GND)

IG power source

Ignition switch ON

10 to 16 V

O209-7 (+B) - O209-12 (GND)

Power supply (from auxiliary battery)

Always

10 to 16 V

O209-9 (CANH) - O209-10 (CANL)

CAN communication line

Ignition switch off

54 to 69 Ω

O209-12 (GND) - Body ground

Ground

Always

Below 1 Ω
w/o Smart Key System

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

O221-1 (IGR) - O221-12 (GND)

IG power source

Ignition switch ON

10 to 16 V

O221-7 (+B) - O221-12 (GND)

Power supply (from auxiliary battery)

Always

10 to 16 V

O221-9 (CANH) - O221-10 (CANL)

CAN communication line

Ignition switch off

54 to 69 Ω

O221-12 (GND) - Body ground

Ground

Always

Below 1 Ω

    READ NEXT:

     Diagnosis System

    DIAGNOSIS SYSTEM CHECK WARNING LIGHT NOTICE: When there is a problem with the tire pressure warning system, the tire pressure warning light blinks at 0.5 second intervals, and illuminates aft

     Freeze Frame Data

    FREEZE FRAME DATA FREEZE FRAME DATA HINT: When a DTC is stored, the freeze frame data stores the current vehicle (sensor) state. The freeze frame data cannot be cleared or updated until th

     Fail-safe Chart

    FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the tire pressure warning system, the tire pressure warning light illuminates after blinking for 1 minute to inform the driver o

    SEE MORE:

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST (a) In accordance with the screen on the GTS, display the data list screen and check the data. Body Electrical > Navigation System > Data List Tester Display Measurement Item Range Normal Condition D

     On-vehicle Inspection

    ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fan when working in the engine compartment with the engine running or the ignition switch ON.

    © 2020-2025 Copyright www.tcorollacross.com PT NL