Advance acoustic 56514925, Service Manual

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Engine System, Gasoline/LPG 111 Service Manual – Advance 7765 / Nilfisk CR1500
To Access the Engine DTC Error Codes Manually
You can access the engine DTC (diagnostic test code) error codes
manually without using a Controller Interface Kit and PC. The
codes will be shown through a sequence of blinks on the
Check
Engine Light
(also referred to as the malfunction indicator lamp or
MIL).
To access the codes:
1. Remove the
Protective Cap
from the
Communication Port
on the engine.
2. Use a wire to jumper
Pin #1
to
Pin #4
as shown.
3. Turn the key switch to the on position. You can now read the error codes by observing the blinks on the
Check Engine Light
. Be ready to write down any codes that may be stored.
Note: The light will always blink “1-6-5-4” three times at the beginning and at the end of the error
code number display series.
For example, error code “116”, indicating an ECT (engine coolant temperature) high-voltage condition,
would be indicated as follows:
a. The light will show one blink, a short pause, six blinks, a short pause, five blinks, a short pause, then
four blinks. Note that this 1-6-5-4 sequence is not an error code, but will be repeated three times to
indicate the beginning of the error code number display series.
b. The light will show the first actual error code (116 in this example) with one blink, a short pause, one
blink, a short pause, then six blinks. This 1-1-6 sequence will be repeated three times, then the light
will blink the next error code number sequence in the series (if present).
• If no DTC codes are found, the
Check Engine Light
will continue to flash the 1-6-5-4 sequence only.
• If one of the numbers in the DTC code is zero (0), the zero will be represented as a short pause (no
flash).
c. When all of the error code number sequences have been displayed, the light will blink the 1-6-5-4
sequence three times again to indicate the end of the error code number series.
d. The light will then repeat steps a through c above.
Empty
Pin #1
Pin #4
Jumper across top row at
outside pins ORN & BLK/GRN
Protective Cap
Communication Port
Check
Engine
Light