Speedometer Malfunction [11/2015 - 12/2018]: Procedure

1. Check if CAN communication DTCs are output.

   Refer to DIAGNOSIS SYSTEM [11/2015 - 11/2017] , or refer to DIAGNOSIS SYSTEM [11/2017 - 12/2018]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - 12/2018] 

Result: 

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.

   Body Electrical > Combination Meter > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Speed Meter Operation	Speedometer	OFF, 0, 40, 80, 120, 160	There is a deviation in the values displayed on the speedometer (Control range → Speedometer display) Reference mph: 40 → 40 to 42 80 → 81 to 83 120 → 122 to 124 160 → 163 to 165 Reference km/h: 40 → 40 to 42 80 → 81 to 83 120 → 122 to 124 160 → 163 to 165

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Speed Meter Operation

   OK

   Speedometer indication is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [11/2015 -] 

Result: 

OK 

See step  3

1. Check if electronically controlled brake system DTCs are output.

   Refer to DTC CHECK / CLEAR [11/2015 - 12/2018]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   Electronically controlled brake system DTCs are not output.	A
   Electronically controlled brake system DTCs are output.	B

Result: 

B 

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - 12/2018] 

Result: 

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.

   Chassis > 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.: 326.4 km/h (203 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   Vehicle Speed

   Body Electrical > Combination Meter > Data List 

   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	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Vehicle Speed Meter

   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 (meter circuit plate) is suspected.
   • When the Data List values of the ECUs do not match, a signal output malfunction of the skid control ECU (brake booster with master cylinder assembly) or an internal malfunction of the combination meter assembly (meter circuit plate) is suspected.

Result: 

A 

REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE). Refer to  DISASSEMBLY [11/2015 -] 

Result: 

B 

See step  5

1. Replace the combination meter assembly (meter circuit plate) with a new or known good one.

   Refer to DISASSEMBLY [11/2015 -]

   OK

   The operation of the speedometer returns to normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

REPLACE SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY). Refer to  REMOVAL [11/2015 - 12/2018]