Speedometer Malfunction

METER: METER / GAUGE SYSTEM: Speedometer Malfunction

Speedometer Malfunction

DESCRIPTION

The combination meter assembly controls the speedometer in accordance with vehicle speed signals from the speedometer sensor.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CONFIRM DTC OUTPUT (CAN COMMUNICATION DTC)
(a) Check DTC Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.
2. CONFIRM DTC OUTPUT (SPEED SENSOR DTC)
(a) Check DTCs Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.
3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER OR TECHSTREAM (SPEED METER)
(a) Connect an intelligent tester or a Techstream to the DLC3.
(b) Turn the ignition switch on (IG) and turn the tester on.
(c) Operate the intelligent tester or Techstream according to the display and select "ACTIVE TEST" or "Active Test" Meter / Gauge System.
(1) Intelligent tester
Body / Combination Meter / ACTIVE TEST::






(2) Techstream
Body Electrical / Combination meter / Active Test::






OK:
Vehicle speed displayed on the tester is approximately the same as that of the speedometer reading.
NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- Continue to next step.
4. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (SPEED METER)
(a) Connect an intelligent tester or a Techstream to the DLC3.
(b) Turn the ignition switch on (IG) and the tester on.
(c) Operate the intelligent tester or Techstream according to the display and select "DATA LIST" or "Data List" Meter / Gauge System.
(1) Intelligent tester
Body / Combination Meter / DATA LIST::






(2) Techstream
Body Electrical / Combination meter / Data List::






OK:
Vehicle speed displayed on the tester is approximately the same as the actual vehicle speed
NOTE: Determine whether the value displayed on the tester is within the acceptable range by referring to reference values described in "ON-VEHICLE INSPECTION" Meter / Gauge System.

NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- USE SIMULATION METHOD TO CHECK
5. REPLACE COMBINATION METER ASSEMBLY
(a) Replace the combination meter assembly with a new or a normal one Removal.
OK:
The operation of the speedometer returns to normal.
NG -- REPLACE ABS AND TRACTION ACTUATOR (SKID CONTROL ECU)
OK -- END