High Pressure Leakage - Honda Prelude 1993 Service Manual

Troubleshooting
Flowcharts (cont'd)
Diagnosric Troubl€ Code (DTC) 1-3: High Pr6$ur€ Leakag6
CAUTIOI{: Uso only th€ digital multimetor to check tho syEtam.
Pre-test steps:
a Check reservoir fluid level. and if necessa.y, fill to the MAX level line.
a Check for tluid leaks from the lunctional parts and replace the faulty parts if there is a leak.
Functional parts:
a Modulator unit
a ABS Pump assembly
a High pressure hose/pipe
View trom undeFhood fuse/relay box
terminal side.
+
il-fnntrT-ll ll-Tl-f-Tlll I l'.ll
IUffil[Iml|[[_trl
UI{OER-HOOD FUSE/RELAY BOX CIRCUIT DIAGRAM
SWITCH SIDE CONNECTOR
Continulty?
View from terminal side.
-
Whh 6ngino running, ABS in-
dicator light is ON.
-
With soryice chock conngctor
jumpod (s6o pag6 19-55),
DTC 'l-3 is indicatod,
Bleed high pressure lluid lrom
the maintenance bleeder with
the Bleeder T-wrench lsee p6ge
1 9 - 8 1 ) .
Connect the No. 29 and No. 30
terminals using a iumper wire lor
about 10 seconds.
Disconnect the 2P connector
from the pressure switch.
Alter 30 minutes, check for con-
tinuiry belween the No.1 {YEL)
and No.2 {YELI terminals on the
switch side of connector.
The v.hicL l. OK rt thb tlmo.
Frrty .oLnoid (leakago).
Ragaac. tha modulator unit.
AAS PUMP AAg UiIIT I7.5AI
19-62
J ! ' . r t i t . d .