Without Scan Tool

Diagnosis By "ABS" Warning Light Illumination Pattern





In the event that there is abnormality in the "ABS" warning light illumination pattern while the key is in the ON position or if the warning light is actuated during driving, trouble should be diagnosed on a illumination pattern basis as follows:

Diagnostic Trouble Codes (DTCs)
When the warning light in the meter remains ON, the EHCU stores the fault identification and disables the ABS.
How to display and erase DTCs:

NOTICE:
^ If DTCs are not displayed, harness C-4 connector terminal 30 and 1-10 connector terminal 2 may be disconnected. Repair the harness and try DTC display again.
^ DTCs can be displayed also by TECH 2. Select mode "F0: Diagnostic Trouble Codes" from Application Menu.

1. How to start DTC display:
^ Confirm that the vehicle has come to a complete stop (with the wheels standing still) and that the brake pedal is not depressed. (Unless these two conditions are satisfied, DTC display cannot be started.)
^ With IGN OFF, connect #12 terminal with #4 terminal or #5 terminal (GND). Then turn IGN ON.





The DLC is located behind the driver side kick panel
^ Keep #12 terminal connected with #4 terminal or #5 terminal (GND) during DTC display. (If #12 terminal is separated from #4 terminal or # 5 terminal (GND) during display, display will stop.)

2. DTC display:
^ DTC is displayed by blinking warning light.
^ Double-digit display.
^ First, normal DTC 12 is displayed three times and then any other DTCs are displayed three times. (if no other DTCs have been stored, the display of DTC 12 will be repeated.)





3. How to erase code:
^ Conduct brake switch ON/OFF operation 6 or more times within 3 seconds of self-diagnosis startup.
^ The code cannot be erased if more than 3 seconds have passed since self-diagnosis startup, or if self-diagnosis has started with brake switched on (brake pedal depressed).

4. Notes
^ If the following should occurs during Diagnostic Trouble Code (DTC) display the display will be discontinued. After initial check, the status that is under the control of ABS will be returned:
- The vehicle starts (The wheels turn) or the brake pedal is depressed.
^ Up to 3 different codes can be stored.
^ If the ABS should turn OFF due to an intermittent defect, the system will be restored at the next key cycle, if the initial check finds no abnormality (when IGN is switched from OFF to ON).





5. An example of DTC display
Display of DTC 23





After displaying DTC 12 three times, one DTC after another is displayed, starting with the most recent one. (However, display is discontinued after about 5 minutes.)
The DTC 12 is displayed repeatedly. (Display is discontinued after about 5 minutes)