Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN COMMUNICATION SYSTEM

Check if CAN communication DTC is output (See HOW TO PROCEED WITH TROUBLESHOOTING ).

Result

RESULT CHART

Result	Proceed to
CAN communication DTC is not output.	A
CAN communication DTC is output	B (See DIAGNOSTIC TROUBLE CODE CHART )

B: GO TO 2CAN COMMUNICATION SYSTEM

A: Go to Next Step

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester ON.
Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / ACTIVE TEST.

Check the operation by referring to the values in the table below.

METER:

METER ACTIVE TEST LIST

Tester Display	Test Part	Control Range	Diagnostic Note
SPEED METER	Speedometer	0, 40, (24), 80 (48), 120 (72), 160 (96), 200 (120), 240 (149) km/h (mph)	-

OK:

Needle indication is normal.

NG: REPLACE COMBINATION METER ASSEMBLY

OK: Go to Next Step

READ VALUE OF INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester ON.
Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / DATA TEST.

Check the values by referring to the values in the table below.

METER:

METER DATA TEST LIST

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
SPEED METER	Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost same as actual speed (When driving)	-

OK:

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

NG: Go to step 4

OK: REPLACE COMBINATION METER ASSEMBLY

READ VALUE OF INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester ON.
Enter the following menus: DIAGNOSIS / OBD/MOBD / ABS/TRAC/VSC / DATA LIST.

Check the values by referring to the table below.

ABS/TRAC/VSC:

ABS/TRAC/VSC REFERENCE

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
(FL/FR/RL/RR) WHEEL SPD	Vehicle speed/Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Almost same as actual speed (When driving)	-

OK:

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

NG: GO TO BRAKE CONTROL

OK: Go to Next Step

REPLACE SKID CONTROL ECU
1. Replace the skid control ECU with a new or a normal one.
  OK:
  
  The operation of the speedometer returns to normal.
NG: REPLACE COMBINATION METER ASSEMBLY

OK: END