METER / GAUGE / DISPLAY METER / GAUGE SYSTEM Speedometer Malfunction
DESCRIPTION
The combination meter assembly receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (brake actuator assembly). The skid control ECU (brake actuator assembly) supplies power to the vehicle speed sensor. The skid control ECU (brake actuator assembly) detects vehicle speed signals based on pulses of the voltage.
- HINT:
-
Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
·Before starting the following inspection, inspect the speedometer and check that the tire size and air pressure are as specified.
Tire size and air pressure: Click hereSuspension>TIRE / WHEEL>TIRE AND WHEEL SYSTEM>INSPECTION202201,999999,_53,_113126,_0503372,RM100000001ZE9E,
Speedometer: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM>ON-VEHICLE INSPECTION202307,202405,_58,_112289,_0504968,RM100000002BI88,202405,999999,_58,_112289,_0504968,RM100000002NUW9,
·When replacing the combination meter assembly, update the ECU security key.
PROCEDURE
Check if CAN communication DTCs are output.
- Result:
Result Proceed to DTCs are not output A DTCs are output B
A
B
for HEV Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202307,999999,_57,_104409,_0606038,RM100000002C0LC,
for Gasoline Model: Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING202307,202405,_57,_104409,_0605911,RM100000002C07Y,202405,999999,_57,_104409,_0605911,RM100000002NU3H,
Check if electronically controlled brake system DTCs are output.
for HEV Model
- Chassis > Brake/EPB > Trouble Codes
- 50001 435
- Chassis > Brake Booster > Trouble Codes
- 50001 466
for Gasoline Model
- Chassis > Brake/EPB > Trouble Codes
- 50001 435
- Result:
Result Proceed to DTCs are not output A DTCs are output B
A
B
for HEV Model: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HEV Model)>DIAGNOSTIC TROUBLE CODE CHART202307,999999,_54,_112606,_0608077,RM100000002C7A2,
for Gasoline Model: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>DIAGNOSTIC TROUBLE CODE CHART202307,999999,_54,_112606,_0608078,RM100000002C7D9,
Perform the Active Test according to the display on the GTS.
- Body Electrical > Combination Meter > Active Test
-
Tester Display Measurement Item Control Range Diagnostic Note Speed Signal Input (0) Vehicle speed test signal input*
(0 km/h, 0 mph)ON When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test. Speed Signal Input (40) Vehicle speed test signal input*
(40 km/h, 40 mph)ON ·When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
·The value displayed on the speedometer may deviate.*
Speed Signal Input (80) Vehicle speed test signal input*
(80 km/h, 80 mph)ON ·When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
·The value displayed on the speedometer may deviate.*
Speed Signal Input (120) Vehicle speed test signal input*
(120 km/h, 120 mph)ON ·When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
·The value displayed on the speedometer may deviate.*
Speed Signal Input (160) Vehicle speed test signal input*
(160 km/h, 160 mph)ON ·When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
·The value displayed on the speedometer may deviate.*
Speed Signal Input (200) Vehicle speed test signal input*
(200 km/h, 200 mph)ON ·When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
·The value displayed on the speedometer may deviate.*
Speed Signal Input (240) Vehicle speed test signal input*
(240 km/h, 240 mph)ON When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
*: For the tolerance of each Speed Signal Input Active Test, refer to On-vehicle Inspection.
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (0) - 50004 409 300
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (40) - 50004 409 301
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (80) - 50004 409 302
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (120) - 50004 409 303
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (160) - 50004 409 304
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (200) - 50004 409 305
- Body Electrical > Combination Meter > Active Test
-
Tester Display Speed Signal Input (240) - 50004 409 306
- OK:
Speedometer indication is normal.
- Result:
Proceed to OK NG
OK
for HEV Model: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for HEV Model)>REMOVAL202307,999999,_54,_112606,_0604462,RM100000002BUEM,
for Gasoline Model: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL202307,999999,_54,_112606,_0604463,RM100000002BUES,
NG