Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026COF
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): TERMINALS OF ECU; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

TERMINALS OF ECU

CHECK TIRE PRESSURE WARNING ECU AND RECEIVER

*A

w/ Smart Entry and Start System

*B

w/o Smart Entry and Start System

*a

Front view of wire harness connector

(to Tire Pressure Warning ECU and Receiver)

-

-

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

w/ Smart Entry and Start System

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

O170-1 (IGR) - O170-12 (GND)

IG power source

Power switch on (IG)

10 to 16 V

O170-7 (+B) - O170-12 (GND)

Power supply (from battery)

Always

10 to 16 V

O170-9 (CANH) - O170-10 (CANL)

CAN communication line

Power switch off

54 to 69 Ω

O170-12 (GND) - Body ground

Ground

Always

Below 1 Ω

w/o Smart Entry and Start System

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

O171-1 (IGR) - O171-12 (GND)

IG power source

Power switch on (IG)

10 to 16 V

O171-7 (+B) - O171-12 (GND)

Power supply (from battery)

Always

10 to 16 V

O171-9 (CANH) - O171-10 (CANL)

CAN communication line

Power switch off

54 to 69 Ω

O171-12 (GND) - Body ground

Ground

Always

Below 1 Ω