Inspection steps

CAUTION: If the check result of vehicle speed reading is outside the allowable range, perform an inspection using a speed meter tester. (Refer to FUNCTION INSPECTION )

Reading the diagnostic code

Using SSM3, check if any diagnostic code related to CAN communication system is output. (Refer to BASIC INSPECTION )

RESULT

Result	Go to
Diagnostic code is not output	A
Diagnostic code is output	B

B: To CAN communication system (Refer to HOW TO TROUBLESHOOT )

A: Go to Next Step

Performing the SSM3 system operation check mode (speed meter)

Using SSM3, display the [System Operation Check Mode] screen ME according to the screen instructions and perform a check. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE )

SSM3 DISPLAY: [EACH SYSTEM CHECK] →[COMBINATION METER] →[WORK SUPPORT] →[SYSTEM OPERATION CHECK MODE]

Item Name	Contents of testing	Check item
[Speed Meter Operation]	Vehicle speed indication changeover	240, 200, 160, 120, 80, 40, 0 (km/h)

NOTE: When performing [System Operation Check Mode], check if the actual meter reading is within the allowable range of meter reading (refer to METER & GAUGE SYSTEM ).

RESULT

Result	Go to
Each vehicle speed in [System Operation Check Mode] can be displayed smoothly	A
Each vehicle speed in [System Operation Check Mode] can not be displayed smoothly	B

B: Replacement of the combination meter ASSY (refer to REMOVAL )

A: Go to Next Step

Reading the SSM3 data (vehicle speed)

Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE )

NOTE: Check the speed meter and the reference value of [Current Data Display & Save].

SSM3 DISPLAY: [EACH SYSTEM CHECK] →[COMBINATION METER] →[CURRENT DATA DISPLAY & CHECK]

Item Name [Symbol]	Description/display range	Normal value	Remarks
[Vehicle Speed] [Speed Meter]	Vehicle speed input value Display range: 0 to 255[km/h]	0 to 255[km/h] Roughly synchronized with actual vehicle speed	Check the reading error of the speed meter

RESULT

Result	Go to
The value of [Current Data Display & Save] differs from the actual vehicle speed value	A
The value of [Current Data Display & Save] almost equals to the actual vehicle speed value	B

B: Replacement of the combination meter ASSY (refer to REMOVAL )

A: Go to Next Step

Reading the diagnostic code (VSC system)

Using SSM3, check if any diagnostic code related to the VSC system is output. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES )

RESULT

Result	Go to
Diagnostic code is not output	A
Diagnostic code is output	B

B: To VSC system (Refer to HOW TO TROUBLESHOOT )

A: Go to Next Step

Reading the SSM3 data (vehicle speed)

Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to [CURRENT DATA DISPLAY & SAVE] )

NOTE: Check the speed meter and the reference value of [Current Data Display & Save].

SSM3 DISPLAY: [EACH SYSTEM CHECK] →[BRAKE CONTROL SYSTEM] →[CURRENT DATA DISPLAY & SAVE]

Item Name [Symbol]	Description/display range	Normal value	Remarks
[Vehicle Speed] [Vhcl Spd]	Vehicle speed output value 0 to 326.4 km/h	0 km/h: When stopped No significant fluctuation: When cruising	-

RESULT

Result	Go to
The value of [Current Data Display & Save] differs from the speed meter	A
The value of [Current Data Display & Save] roughly synchronizes with the speed meter	B

B: Replacement of the brake actuator ASSY (Refer to REMOVAL )

A: Go to Next Step

Replacement of combination meter ASSY

Replace with a new or normally functioning combination meter ASSY (refer to REMOVAL ) and check the operation of the speed meter.

RESULT

Result	Go to
Operates normally	A
Does not operate normally	B

B: Replacement of the brake actuator ASSY (Refer to REMOVAL )

A: Complete (Internal fault of the combination meter ASSY)