Dtc C2192/92 Select Switch Error (Test Mode Dtc)

Suspension & Axle. Lexus Gs430, Gs300. Uzs190 Grs190
Tire And Wheel. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE ON INTELLIGENT TESTER

INSPECT TIRE SELECT SWITCH

CHECK HARNESS AND CONNECTOR (TIRE PRESSURE MONITOR ECU-TIRE SELECT SWITCH)

CHECK HARNESS AND CONNECTOR (TIRE SELECT SWITCH-BODY GROUND)

DTC C2192/92 Select Switch Error (Test Mode DTC)


DESCRIPTION

The tire select switch has 2 positions: "MAIN" and "2nd". 2 kinds of ID (2 types of tires) for the tire pressure monitor valve sub-assembly can be registered to the tire pressure monitor ECU.

DTC No.
DTC Detecting Condition
Trouble Area
C2192/92
In test mode, switch position is not detected in the order:
"MAIN", "2nd", "MAIN"
  1. Tire select switch
  2. Tire pressure monitor ECU
  3. Wire harness

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Tire And Wheel.Tire And Wheel System. Dtc C2192/92 Select Switch Error (Test Mode Dtc)


INSPECTION PROCEDURE

HINT:
Start the inspection from step 1 when using the intelligent tester, and from step 2 when not using the intelligent tester.
1.READ VALUE ON INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Select the item below in the DATA LIST, and read its value displayed on the intelligent tester.

    TIRE PRESSURE:

    Item
    		Normal Condition
    SELECT SW
    		No pressing: MAIN
    Pressing: 2nd

  1. Check that the value displayed on the intelligent tester changes when pressing the tire select switch.

    OK:
    Tire select switch value changes.


NG
Go to step 2
OK

REPLACE TIRE PRESSURE MONITOR ECU

2.INSPECT TIRE SELECT SWITCH


    Lexus Gs430, Gs300. Uzs190 Grs190.Tire And Wheel.Tire And Wheel System. Dtc C2192/92 Select Switch Error (Test Mode Dtc)

  1. Disconnect tire select switch K50 connector.

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

    Standard resistance:
    Switch Position
    		Tester Connection
    		Specified Condition
    MAIN
    		2 (INT) - 1 (E)
    		10 kΩ or higher
    2nd
    		2 (INT) - 1 (E)
    		Below 1 Ω


NG
REPLACE TIRE SELECT SWITCH
OK


3.CHECK HARNESS AND CONNECTOR (TIRE PRESSURE MONITOR ECU-TIRE SELECT SWITCH)


    Lexus Gs430, Gs300. Uzs190 Grs190.Tire And Wheel.Tire And Wheel System. Dtc C2192/92 Select Switch Error (Test Mode Dtc)

  1. Disconnect the tire pressure monitor ECU K45 connector.



    Lexus Gs430, Gs300. Uzs190 Grs190.Tire And Wheel.Tire And Wheel System. Dtc C2192/92 Select Switch Error (Test Mode Dtc)

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    K45-3 (IDSW) - K50-2
    		Below 1 Ω
    K45-3 (IDSW) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (TIRE SELECT SWITCH-BODY GROUND)


    Lexus Gs430, Gs300. Uzs190 Grs190.Tire And Wheel.Tire And Wheel System. Dtc C2192/92 Select Switch Error (Test Mode Dtc)

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    K50-1 - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TIRE PRESSURE MONITOR ECU