Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GS9P
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): C2198; Initialization Switch Error (for Test Diagnosis); 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DTC

C2198

Initialization Switch Error (for Test Diagnosis)

DESCRIPTION

The switch circuit inside the combination meter assembly turns on and off according to the steering pad switch assembly operation.

During test mode, the tire pressure warning light blinks at 0.125 second intervals when "Set Pressure" is selected on the multi-information display, and illuminates when the "OK" switch (steering pad switch assembly) is pressed.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

C2198

Initialization Switch Error (for Test Diagnosis)

Test mode procedure is performed.
  • Steering pad switch assembly
  • Spiral cable sub-assembly
  • Wire harness or connector
  • Tire pressure warning ECU and receiver

-

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the tire pressure warning ECU and receiver, read the transmitter IDs and number of the transmitters (4 or 5) stored in the old ECU using the Techstream and write them down before removal.
  • It is necessary to perform initialization 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): INITIALIZATION after registration 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): REGISTRATION of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.

PROCEDURE

1.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 03/2019]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [03/2019 - 09/2022]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): REMOVAL

(b) Inspect the steering pad switch assembly.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 03/2019]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): INSPECTION 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [03/2019 - 09/2022]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): INSPECTION

NG

REPLACE STEERING PAD SWITCH ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 03/2019]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [03/2019 - 09/2022]; STEERING COLUMN: STEERING PAD SWITCH (except G16E-GTS): REMOVAL

OK

2.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Remove the spiral cable sub-assembly.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

(b) Inspect the spiral cable sub-assembly.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: INSPECTION

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

OK

3.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the I82 spiral cable sub-assembly connector.

(b) Disconnect the I4 combination meter assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I82-11 (+DP) - I4-32 (MSM+)

Always

Below 1 Ω

I82-11 (+DP) or I4-32 (MSM+) - Body ground

Always

10 kΩ or higher

I82-10 (+DP2) - I4-15 (MSTI)

Always

Below 1 Ω

I82-10 (+DP2) or I4-15 (MSTI) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TIRE PRESSURE WARNING ECU AND RECEIVER)

(a) Disconnect the O18 tire pressure warning ECU and receiver connector.

(b) Disconnect the I4 and I5 combination meter assembly connectors.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

O18-3 (CLSW) - I5-24 (INT)

Always

Below 1 Ω

O18-3 (CLSW) or I5-24 (INT) - Body ground

Always

10 kΩ or higher

I4-23 (ES) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK TERMINAL VOLTAGE (INT)

(a) Connect the O18 tire pressure warning ECU and receiver connector.

(b) Disconnect the I5 combination meter assembly connector.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

I5-24 (INT) - Body ground

Power switch on (IG)

8 to 15 V
OK

GO TO METER / GAUGE SYSTEM

NG

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER