Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Initialization Switch Error (for Test Diagnosis) (C2198)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System(for Gasoline Model) / Initialization Switch Error (for Test Diagnosis) (C2198)

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 after 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

(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 G17 spiral cable sub-assembly connector.

(b) Disconnect the G16 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G17-10 (+DP2) - G16-28 (MSM+)

Always

Below 1 Ω

G17-10 (+DP2) or G16-28 (MSM+) - Body ground

Always

10 kΩ or higher

G17-11 (+DP) - G16-29 (MSTI)

Always

Below 1 Ω

G17-11 (+DP) or G16-29 (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 K11 tire pressure warning ECU and receiver connector.

(b) Disconnect the G16 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K11-3 (CLSW) - G16-4 (INT)

Always

Below 1 Ω

K11-3 (CLSW) or G16-4 (INT) - Body ground

Always

10 kΩ or higher

G16-21 (ES) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK TERMINAL VOLTAGE (INT)

(a) Connect the K11 tire pressure warning ECU and receiver connector.

(b) Disconnect the G16 combination meter assembly connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G16-4 (INT) - Body ground

Engine switch on (IG)

8 to 15 V
OK

GO TO METER / GAUGE SYSTEM

NG

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

    Tire Pressure Monitor ECU Communication Stop (C2179)

    Cannot Switch to Automatic ID Registration Mode

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