Lexus LX - Page 304

INSPECTION PROCEDURE
HINT:
The wire harness between the multiplex tilt and telescopic ECU and telescopic motor is provided with the steering column assembly.
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TELESCOPIC SHORT/LONG)
a. Select the Active Test, use the intelligent tester to generate a control command,
and then check that the steering column contracts and extends.
Tilt & Telescopic
Tester Display Test Part Control Range Diagnostic Note
Telesco Operation Telescopic operation Long/Short -
Result
Result Proceed to
The steering column does not contract/extend. A
The steering column contracts/extends. B
B Go to step 3
A
2.CHECK TELESCOPIC MOTOR
a. Disconnect connector A from the multiplex tilt and telescopic ECU.
b. Apply 12 V battery voltage to the multiplex tilt and telescopic ECU connector.
Then check the steering wheel telescopic operation.
OK:
Measurement Condition Specified Condition
12 V battery positive (+) lead →
Terminal A-2 (TEM+)
12 V battery negative (-) lead →
Terminal A-6 (TEM-)
The steering column
contracts.
12 V battery positive (+) lead →
Terminal A-6 (TEM-)
12 V battery negative (-) lead →
Terminal A-2 (TEM+)
The steering column
extends.
NG REPLACE STEERING COLUMN ASSEMBLY (Click here)
OK
REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ( Click here)
3.CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VCE TERMINAL VOLTAGE)