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Toyota Tacoma (2015-2018) Service Manual: Initialization Switch (for Test Mode DTC) (C2198/98)

Toyota Tacoma (2015-2018) Service Manual / Tire And Wheel / Tire Pressure Warning System / Initialization Switch (for Test Mode DTC) (C2198/98)

DESCRIPTION

During test mode, when the tire pressure warning reset switch is on, the tire pressure warning light comes on and when the tire pressure warning reset switch is off, the tire pressure warning light blinks at 0.125 second intervals.

DTC No.

DTC Detection Condition

Trouble Area

C2198/98

Test mode procedure is performed.

  • Tire pressure warning reset switch
  • Wire harness or connector
  • Tire pressure warning ECU and receiver

WIRING DIAGRAM

CAUTION / NOTICE / HINT

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.
  • It is necessary to perform initialization (See page ) of the transmitter IDs into the tire ) after registration (See page pressure warning ECU and receiver if the ECU has been replaced. ) of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.

PROCEDURE

1.

INSPECT TIRE PRESSURE WARNING RESET SWITCH

(a) Disconnect the T15 tire pressure warning reset switch connector.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

1 (INT) - 2 (E)

On

Below 1 Ω

Off

10 kΩ or higher

Text in Illustration

*a

Component without harness connected

(Tire Pressure Warning Reset Switch)

*b

On

*c

Off

NG

REPLACE TIRE PRESSURE WARNING RESET SWITCH

OK

2.

CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING RESET SWITCH - TIRE PRESSURE WARNING ECU AND RECEIVER)

(a) Disconnect the T15 tire pressure warning reset switch connector and T14 tire pressure warning ECU and receiver connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

T14-3 (CLSW) - T15-1 (INT)

Always

Below 1 Ω

T14-3 (CLSW) - Body ground

Always

10 kΩ or higher

T15-2 (E) - Body ground

Always

Below 1 Ω

OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Tire Pressure Monitor ECU Communication Stop (C2179/79)
DESCRIPTION The main body ECU (multiplex network body ECU) sends signals to the tire pressure warning ECU and receiver via a direct line. DTC No. Detection Item DT ...

Tire Pressure Monitor Receiver Communication Stop (B1247)
DESCRIPTION The main body ECU (multiplex network body ECU) and tire pressure warning ECU and receiver are connected using 2 direct lines that they use to communicate with each other. ...

Other materials:

Steering Angle Sensor (C1A47)
DESCRIPTION The forward recognition camera receives steering angle information from the spiral cable with sensor sub-assembly. If the forward recognition camera detects a spiral cable with sensor sub-assembly malfunction, DTC C1A47 is stored. DTC No. Detection Item ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is displayed during the DTC check, inspect the trouble area for that code. For details of each code, refer to the relevant page listed under respective "See page" in the DTC chart. Tire Pressure Warning ECU and Receiver ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN CHECKING FOR DTCS (a) When the cable is disconnected from the negative (-) battery terminal, the DTCs stored in the steering lock ECU (steering lock actuator or UPR bracket assembly) are cleared. Be sure to record any output DTCs immediately. (b) Normally, with ...

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