Meter - Gauge System (For Sedan) - Speedometer Malfunction

Brand:

Toyota

Model Name:

Yaris NCP90 91 92 93

Manual:

Repair Manual

Section:

Meter

Title:

Meter - Gauge System (For Sedan)

  1. Description

  2. Wiring diagram

  3. Inspection procedure

  4. Perform active test using intelligent tester (speed meter)

  5. Check brake control system

  6. Read value using intelligent tester (vehicle speed meter)

  7. Inspect speedometer sensor

  8. Check harness and connector (speedometer sensor - combination meter assembly)

METER / GAUGE SYSTEM (for Sedan) > Speedometer Malfunction


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DESCRIPTION

  1. w/o ABS:
    The combination meter assembly controls the speedometer in accordance with vehicle speed signals from the speedometer sensor.
  1. w/ ABS:
    The combination meter assembly controls the speedometer in accordance with vehicle speed signals from the brake actuator through the CAN communication system.

WIRING DIAGRAM


Connect the intelligent tester to the DLC3. Yaris


INSPECTION PROCEDURE

HINT:
If DTC U0129 has been stored, troubleshoot the CAN communication system first.
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SPEED METER)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and turn the tester on.

  1. Perform the Active Test according to the prompts displayed on the tester.

    Combination Meter:

    Item
    		Test Details
    		Diagnostic Note
    Speed Meter Operation
    		0 / 40 (24) / 80 (48) / 120 (72) / 160 (96) / 200 (120) / 240 (144) km / (mph)
    		-
    OK:
    Vehicle speed displayed on the tester is approximately the same as that of the speedometer reading.


NGnext
REPLACE COMBINATION METER ASSEMBLY
OK
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2.CHECK BRAKE CONTROL SYSTEM

  1. Check the brake control system.

Result:
Brake Control System
Proceed to
w/ ABS
A
w/o ABS
B


Bnext
Go to step 4
A
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3.READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED METER)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and turn the tester on.

  1. Read the Data List according to the prompts displayed on the tester.

    Combination Meter:

    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    Vehicle Speed Meter
    		Vehicle speed /
    Min.: 0 km/h (0mph),
    Max.: 255 km/h (158mph)
    		Approximately same as actual vehicle speed (When vehicle is driven)
    		-
    OK:
    Vehicle speed displayed on the tester is approximately the same as the actual vehicle speed.


NGnext
GO TO BRAKE CONTROL SYSTEM
OK
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REPLACE COMBINATION METER ASSEMBLY

4.INSPECT SPEEDOMETER SENSOR
  1. Remove the speedometer sensor. Yaris

  2. Remove the speedometer sensor.

  1. Connect the positive (+) lead from the battery to terminal 1 and the negative(-) lead to terminal 2.

  1. Connect the positive (+) lead from the tester to terminal 3 and the negative (-) lead to terminal 2.

  1. Rotate the shaft.

  1. Check that the voltage output between terminals 2 and 3 varies between 0V and 11V.

  1. Reinstall the speedometer sensor.



NGnext
REPLACE SPEEDOMETER SENSOR
OK
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5.CHECK HARNESS AND CONNECTOR (SPEEDOMETER SENSOR - COMBINATION METER ASSEMBLY)
  1. Disconnect the D1 combination meter assembly connector. Yaris

  2. Disconnect the D1 combination meter assembly connector.

  1. Disconnect the C23 speedometer sensor connector.

  1. Measure the resistance.

    Standard resistance:
    Tester Connection
    		Specified Condition
    D1-17 (SI) - C23-3 (SI)
    		Below 1 Ω
    C23-2 (SE) - Body ground
    		Below 1 Ω

  1. Reconnect the combination meter assembly connector.

  1. Measure the voltage.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    C23-1 (IG+) - Body ground
    		Ignition switch ON
    		10 to 14V

  1. Reconnect the speedometer sensor connector.



NGnext
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
next down
REPLACE COMBINATION METER ASSEMBLY