TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BAT/Brakes, ABS & TRAC Systems54 / 167
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DIAGNOSIS SYSTEM INDICATOR CHECK — MK4 Supra Brakes, ABS & TRAC Systems, page 54
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BR–54 BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS) DIAGNOSIS SYSTEM INDICATOR CHECK 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 troubleshooting for the ABS warning light circuit (See page BR–107) DIAGNOSTIC TROUBLE CODE CHECK 1. Turn the ignition switch ON. 2. Disconnect the Short Pin from DLC1. Short Pin DLC1 R08980 DLC2 DLC1 E1 Tc E1 Tc S-17-1 Ini-23-1-A 3. Using SST, connect terminals Tc and E1 of DLC2 or DLC1. SST 09843–18020 4. Read the diagnostic trouble code 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 BR–112 or BR–107). Normal Code 2 sec. 0.25 sec. 0.25 sec. ON OFF Code 11 and 21 0.5 sec. 0.5 1.5 sec. 4 sec. sec. 2.5 sec. ON OFF Code 11 Code 21 R05495 BE4033 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 BR–56. 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 diagnostic trouble code will be displayed first.