Inspection Procedure

NOTE: If the vehicle speed is outside the allowable range when tested, perform the following procedure(See ON-VEHICLE INSPECTION ).

HINT:

Before starting the following inspection, check tire size and tire pressure.

CHECK CAN COMMUNICATION SYSTEM

Check if a CAN communication DTC is output (See DIAGNOSIS SYSTEM ).

Result

RESULT REFERENCE

Result	Proceed to
CAN communication DTC is not output.	A
CAN communication DTC is output.	B

B: GO TO CAN COMMUNICATION SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to Next Step

PERFORM ACTIVE TEST USING TECHSTREAM (SPEED METER OPERATION)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Active Test.
Check the operation by referring to the values in the table below.

Combination Meter

CONTROL RANGE REFERENCE

Tester Display

Test Part

Control Range

Diagnostic Note

Speed Meter Operation

Speedometer

0, 40, 80, 120 mph⁽¹⁾

0, 40, 80, 120, 160, 200, 240 km/h⁽²⁾

⁽¹⁾	for U.S.A.

⁽²⁾	except for U.S.A.

OK:

Gauge indication is normal .

NG: REPLACE COMBINATION METER (See COMBINATION METER )

OK: Go to Next Step

READ VALUE USING TECHSTREAM (VEHICLE SPEED METER)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Data List.
Check the values by referring to the table below.

Combination Meter

ITEM RANGE REFERENCE CHART

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 same as actual speed (Speedometer tester indication)	-

OK:

Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer) .

NG: Go to Next Step

OK: REPLACE COMBINATION METER (See COMBINATION METER )

READ VALUE USING TECHSTREAM (FR/FL/RR/RL WHEEL SPEED)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
Check the values by referring to the table below.

ABS/VSC/TRAC

ITEM RANGE REFERENCE

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
FR Wheel Speed	FR wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
FL Wheel Speed	FL wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
RR Wheel Speed	RR wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
RL Wheel Speed	RL wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
Vehicle Speed	Maximum wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual vehicle speed	Speed indicated on speedometer

OK:

Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer) .

Result

RESULT REFERENCE

Result	Proceed to
OK	A
NG (w/o VSC)	B
NG (w/ VSC)	C

B: GO TO BRAKE CONTROL SYSTEM (w/o VSC) (See HOW TO PROCEED WITH TROUBLESHOOTING )

C: GO TO BRAKE CONTROL SYSTEM (w/ VSC) (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to Next Step

REPLACE SKID CONTROL ECU
1. Replace the skid control ECU with a new or a known good one (See INSTALLATION w/o VSC, INSTALLATION w/ VSC).
  OK:
  
  The operation of the speedometer returns to normal .
  
  NG: REPLACE COMBINATION METER (See COMBINATION METER )
  
  OK: END