Lexus Diagnostic Anti Lock Brake System PDF Manual Installation

PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Check the indicator. When the ignition switch is turned ON, check that the ABS warning light goes on for 3 seconds.
HINT: If the indicator check result is not normal, proceed to trouble-shooting for the ABS warning light circuit (See page DI-317).
(b) In case of not using LEXUS hand-held tester: Check the DTC.
(1) Disconnect the short pin from DLC1.
(2) Using SST, connect terminals Tc and E1 of DLC2 or DLC1. SST 09843-18020
(3) Turn the ignition switch ON.
(4) Read the DTC from the ABS warning light on the combination meter.
HINT: If no code appears, inspect the diagnostic circuit or ABS warning light circuit (See page DI-317 or DI-322). As an example, the blinking patterns for normal code and codes 11 and 21 are shown on the left.
(5) Codes are explained in the code table on page DI-271.
(6) After completing the check, disconnect terminals Tc and E1, and turn off the display. If 2 or more malfunctions are indicated at the same time the lowest numbered DTC will be displayed 1st.

(c) In case of using LEXUS hand-held tester: Check the DTC.
(1) Hook up the LEXUS hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Read the DTC by following the prompts on the tester screen.
HINT: Please refer to the LEXUS hand-held tester operator’s manual for further details.
(d) In case of not using LEXUS hand-held tester: Clear the DTC.
(1) Using SST, connect terminals Tc and E1 of DLC1 and remove the short pin from DLC1. SST 09843-18020
(2) Turn the ignition switch ON.
(3) Clear the DTC stored in ECU by depressing the brake pedal 8 or more times within 5 seconds.
(4) Check that the warning light shows the normal code.
(5) Remove the SST from the terminals of DLC1. SST 09843-18020
(6) Connect the short pin to DLC1.
HINT: The DTC stored in the ECU will be not erased when the battery terminal is disconnected for the troubleshooting.
(e) In case of using LEXUS hand-held tester: Clear the DTC.
(1) Hook up the LEXUS hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Operate the LEXUS hand-held tester to erase the codes. (See LEXUS hand-held tester operator’s manual.)
(f) (Reference): Using LEXUS break-out-box and LEXUS hand-held tester, measure the ECU terminal values.
(1) Turn the ignition switch OFF.
(2) Hook up the LEXUS break-out-box and LEXUS hand-held tester to the vehicle.
(3) Turn the ignition switch ON.