Pinout Values and Diagnostic Parameters

ECU TERMINAL VALUES MEASUREMENT USING LEXUS BREAK-OUT-BOX AND LEXUS HAND-HELD TESTER





1. Hook up the LEXUS hand-held tester and LEXUS brake-out-box to the vehicle.
2. Read the ECU input/output values by following the prompts on the tester screen.

NOTE: LEXUS hand-held tester has a "Snapshot" function. This records the measured values and is effective in the diagnosis of intermittent problems.
Please refer to the LEXUS hand-held tester/ LEXUS break-out-box operator's manual for further details.

INSPECTION

1. Inspect battery positive voltage.
Inspect that the battery positive voltage is 10 - 14 Volts.

ABS Warning Light:

2. Check Warning Light turns ON.
(a) Confirm that the center differential is free.
(b) Turn the Ignition Switch ON.
(c) Check the ABS Warning Light turns on for 3 seconds. If not, inspect and repair or replace the fuse, bulb and wire harness.
3. Read DTC.