Speedometer Malfunction [07/2015 - ]: Procedure

1. Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [07/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ] w/ Central Gateway ECU. Refer to DIAGNOSIS SYSTEM [07/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ] w/o Central Gateway ECU

   Result

   Result	Proceed to
   CAN communication DTCs are not output.	A
   CAN communication DTCs are output (w/ Central Gateway ECU).	B
   CAN communication DTCs are output (w/o Central Gateway ECU).	C

Result:  B

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]

Result:  C

C 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]

Result:  A

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
5. Perform the Active Test according to the display on the Techstream.
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Speed Meter Operation	Speedometer	OFF, 0, 40, 80, 120 mph*1	There is a deviation in the values displayed on the speedometer (Control range → Speedometer display) 40 → 39.0 to 41.8 80 → 79.2 to 82.4 120 → 119.6 to 122.8
   		OFF, 0, 40, 80, 120, 160, 200, 240 km/h*2	w/ Sub Scale: There is a deviation in the values displayed on the speedometer (Control range → Speedometer display) 40 → 38.2 to 42.7 80 → 78.3 to 83.3 120 → 118.7 to 123.7 160 → 159.1 to 164.1 200 → 199.5 to 204.5 240 → 239.9 to 244.9
   			w/o Sub Scale: There is a deviation in the values displayed on the speedometer (Control range → Speedometer display) 40 → 41.7 to 46.2 80 → 83.4 to 88.4 120 → 125.1 to 130.6 160 → 166.2 to 173.2 200 → 207.7 to 215.7 240 → 249.2 to 258.0

   • *1: for Speedometer with Imperial Units for Main Scale
   • *2: for Speedometer with Metric Units for Main Scale

   OK

   Speedometer indication is normal.

Result:  NG

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [07/2015 - ]

Result:  OK

OK 

See step  3

1. Check if electronically controlled brake system DTCs are output. Refer to DTC CHECK / CLEAR [07/2015 - ]

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

Result:  B

B 

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - ]

Result:  A

A 

See step  4

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus:
   1. for ABS/VSC/TRAC: Chassis / ABS/VSC/TRAC / Data List.
   2. for Combination Meter: Body Electrical / Combination Meter / Data List.
5. Read the Data List according to the display on the Techstream.
   ABS/VSC/TRAC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed	Maximum wheel speed sensor/Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Meter	Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost the same as actual vehicle speed	-

   Result

   Result	Proceed to
   The data list values of the ECUs match.	A
   The data list values of the ECUs do not match.	B

   HINT: 

   • When the Data List values of the ECUs match, an internal malfunction of the combination meter assembly is suspected.
   • When the Data List values of the ECUs do not match, a signal output error of the skid control ECU or an internal malfunction of the combination meter assembly is suspected.

Result:  A

A 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [07/2015 - ]

Result:  B

B 

See step  5

1. Replace the combination meter assembly with a new one. Refer to REMOVAL [07/2015 - ]

   OK

   The operation of the speedometer returns to normal.

Result:  OK

OK 

END 

Result:  NG

NG 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SKID CONTROL ECU) 

Refer to REMOVAL [07/2015 - ]