ABS: 4E-24
Understanding the DTC (Diagnostic Trouble Code)
A two-digit DTC is shown through the flashing pattern of the ABS indicator light. A number between 1 and 9 is
represented by the number of times that the ABS indicator light lights up in interval of 0.4 seconds and the separation
between the tens and ones are indicated by the light staying off for 1.6 seconds. In addition, the separation between
the start code and the DTC is indicated by the light being off for 3.6 seconds. After the start code is displayed, DTCs
appear from the smallest number code.
If no DTCs are memorized, the ABS indicator light keeps lighting up.
Use of SDS
NOTE
• Don’t disconnect couplers from ABS HU,
the battery cable from the battery, ABS HU
ground wire harness from the engine or
main fuse before confirming the
malfunction code (self-diagnostic trouble
code) stored in memory. Such
disconnection will erase the memorized
information in ABS HU memory.
• DTC stored in ABS HU memory can be
checked by the SDS.
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
Output finish
Output start
Code 12
Code 31
ABS indicator light
(Malfunction exists)
ABS indicator light
(No malfunction exists)
Mode select switch
Brake light switch
Ignition switch
“a” “b”
“c”
“d”
“e”
“f”
“b”
“g”
I718H1450129-01
“a”: Initial minimum light ON time (About 2 seconds) “e”: Main-sub code interval (1.6 seconds)
“b”: Error code interval (About 3.6 seconds) “f”: Sub code light ON time (0.4 seconds)
“c”: Main code light ON time (0.4 seconds) “g”: Sub code light OFF time (0.4 seconds)
“d”: Main code light OFF time (0.4 seconds)
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