Toyota CH-R Service Manual: Initialization Switch (for Test Mode DTC) (C2198/98)

Toyota CH-R Service Manual / Tire Pressure Monitoring / Tire Pressure Warning System / Initialization Switch (for Test Mode DTC) (C2198/98)

DESCRIPTION

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

During test mode, when the steering pad switch assembly is operated, "TPMS" is selected on the multi-information display and the "ENTER" switch (steering pad switch assembly) is pressed, the tire pressure warning light illuminates, and when the "ENTER" switch (steering pad switch assembly) is not pressed, the tire pressure warning light blinks at 0.125 second intervals.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

C2198/98

Initialization Switch (for Test Mode DTC)

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 stored in the old ECU using the Techstream and write them down before removal.

    Click here

  • It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.

PROCEDURE

1.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here

(b) Inspect the steering pad switch assembly.

Click here

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

2.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Remove the spiral cable sub-assembly.

Click here

(b) Inspect the spiral cable sub-assembly.

Click here

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

OK

3.

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

(a) Disconnect the F29 spiral cable sub-assembly connector.

(b) Disconnect the F4 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F29-10 (+DP) - F4-28 (MSM+)

Always

Below 1 Ω

F29-10 (+DP) or F4-28 (MSM+) - Body ground

Always

10 kΩ or higher

F29-11 (+DP2) - F4-33 (MSSL)

Always

Below 1 Ω

F29-11 (+DP2) or F4-33 (MSSL) - 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 M23 tire pressure warning ECU and receiver connector.

(b) Disconnect the F4 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M23-3 (CLSW) - F4-4 (INT)

Always

Below 1 Ω

M23-3 (CLSW) or F4-4 (INT) - Body ground

Always

10 kΩ or higher

F4-21 (ET) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK TERMINAL VOLTAGE (INT)

(a) Disconnect the F4 combination meter assembly connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

F4-4 (INT) - Body ground

Ignition switch to ON

8 to 15 V

OK

GO TO METER / GAUGE SYSTEM

NG

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

    Transmitter ID not Received in Main Mode (C2126/26)
    DESCRIPTION After all IDs are registered, DTC C2126/26 is stored in the tire pressure warning ECU and receiver and the tire pressure warning light blinks for 1 minute and then illuminates. When ...

    Initialization not Completed (C2177/77)
    DESCRIPTION Initialization is necessary if one of the following occurs: The tire pressure warning ECU and receiver is replaced. A tire pressure warning valve and transmitter is replaced. ...

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