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.
NOTE:
- Turn the engine switch off before measuring the resistances of CAN bus main wires and CAN bus branch wires.
- After the engine switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
- Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other switches, or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.
- CHECK FOR OPEN IN CAN NO. 1 BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE)
- Turn the engine switch off.
- Disconnect the steering angle sensor connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFICATIONTester Connection Condition Specified Value E31-10 (CANH) - E31-9 (CANL) Engine switch off 54 to 69 Ω
NG: REPAIR OR REPLACE CAN NO. 1 BUS BRANCH WIRE OR CONNECTOR (STEERING ANGLE SENSOR)
OK: Go to Next Step
- CHECK WIRE HARNESS (IG, ESS)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE SPECIFICATIONTester Connection Condition Specified Value E31-2 (ESS) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard voltage
VOLTAGE SPECIFICATIONTester Connection Condition Specified Value E31-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE STEERING ANGLE SENSOR (See REMOVAL )
- Measure the resistance according to the value(s) in the table below.