Honda Prelude 1993 Service Manual page 899

1 9 - 5 5
Oiagnostic Troubl€ Cod€ {DTCI:
1. Disconnect the service check connector from the connector cover located behind the tront of the center console.
Connect the two terminals of the service check connector with a jumper wire.
2. Turn the ignition switch on. but do not start the engine.
3, Record the blinking frequency of the ABS indicator light.
The blinking frequency indicates the diagnostic trouble code (DTC).
CAUTION: B€foro starting the engine, disconnact the lumper wire from tho sorvico ch6ck connoctor, o. els€ the
Malfunction Indicator Lamp (MlL) will stay on with tho engine.unning.
DTC indication oatto.n
Tum the lgnition
switch on
DTC. 4-2
Main Code: 4
Sub-Codo: 2
DTC: 1
Main Cod6: 1
Sub-Cods: none
Dfc| 7 -2
Mlin Code: 7
S u b - C o d ! : 2
A8S
Indicator -, -.
light on
ABS
lndicator
light oft
Conngct tho
iumpor wi.e
Second
pauso
Socond
p6u30
Socond
paulo
2
1
5 Socond
pau30
5 Sacond
pauro
SERVICE CHECX
CONNECTOR I2PI
N O T E :
a The ABS control unit can indicate three DTCS (one, two or three problems).
a lf the ABS indicator light does not light, see Troubleshooting of ABS Indicator Light Circuit page 19-54.
a lf you miscount the blinking trequsncy, turn the ignition switch off then on to cycle the ABS indicator light again.
a After the repair is completed. disconnsct the ABS 82 {15 A) fuse in the under-hood fuse/relay box for at least
three seconds to erase the ABS control unit's memory. Then turn the ignition key on agsin and recheck.
a The memory is erased it the connector is disconnected from the ABS control unit or the ABS control unit is remov-
ed from the bodv.
a AJter recording the DTC (if applicable), refer to the Symptom-to-System Chart.
DATA LINK CONNECTOR (3PI
1 Socond
NOTE: Do not attach
the jumper wire.
ABS INDICATOR LIGHT