EDI DIAGNOSIS
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002
Page 5E-11
BLINK CODE TOOL
1. Install diagnostic Blink Code Tool (BCT) connector into the cavity of the DLC connector.
2. Switch the key ON. Keep the key ON for all diagnostic work.
3. Press the button on the BCT for 2.5 - 5.0 seconds.
4. When the button is released the BCT lamp will start to flash an output sequence which
begins with a long blink followed by four groups of shorter blinks.
5. If there are no fault codes stored, the code 4 4 4 4 will be blinked out. This will appear
as:
•
pause for 2.5 seconds
•
flash for 2.5 seconds (diagnosis accepted)
•
pause for 2.5 seconds
•
4 flashes of 0.5 seconds at 0.5 second intervals (representing the first blink code
number)
•
pause for 2.5 seconds
•
4 flashes of 0.5 seconds at 0.5 second intervals (representing the second blink code
number)
•
pause for 2.5 seconds
•
4 flashes of 0.5 seconds at 0.5 second intervals (representing the third blink code
number)
•
pause for 2.5 seconds
•
4 flashes of 0.5 seconds at 0.5 second intervals (representing the forth blink code
number)
•
pause for 2.5 seconds
•
flash for 2.5 seconds (indicating end of the code)
NOTE: The Malfunction Indicator Lamp (MIL) on the engine monitor panel (dash) should
flash the same sequence as the BCT.
6. If a fault code is stored, the code will be blinked out in the same way. Then, the cycle
will repeat itself.
7. Press the button on the BCT for 2.5 - 5.0 seconds to blink out the next code.
8. Repeat Step 7, until the code 0 0 0 0 is observed. This appears as a continuous series
of long blinks, such as:
•
pause for 2.5 seconds
•
flash for 2.5 seconds
•
pause for 2.5 seconds
•
flash for 2.5 seconds
•
pause for 2.5 seconds
•
The sequence will continue until a new request for diagnosis is initiated, by pressing
the BCT button for between 2.5 - 5 seconds.
