2002 HONDA CIVIC multiplex control

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Page 973 of 1139

HONDA CIVIC 2002 7.G Workshop Manual Wipers/Washers
Control Unit Input Test (contdl
5. Reconnect the connectors, and make these input tests at the connector.
.lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.
.lfal

Page 988 of 1139

HONDA CIVIC 2002 7.G Workshop Manual 6. Disconnect the M, P, K and J connectors from the underdash fuse/relay box, and make these input tests at the connectors.
.lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem..lfa

Page 992 of 1139

HONDA CIVIC 2002 7.G Workshop Manual Transmitter Test
NOTE:. lf the doors unlockorlockwiththetransmitter, but
the LED on the transmitter does not come on, the LED
is faulty. Replace the transmitter,. lf anydoor isopen, you cannotlockthed

Page 999 of 1139

HONDA CIVIC 2002 7.G Workshop Manual Multiplex Control System
Component Location Index
IGNITION KEY LIGHTTest, page 2291
lr, J
REAR CEILING LIGHTTest, page 2296
LIGHT/SPOTLIGHTSTest, page 22-96
GAUGE ASSEMBLY
ECM
MULTIPLEX CONTROL UNIT

Page 1001 of 1139

HONDA CIVIC 2002 7.G Workshop Manual Multiplex Control System
J
J
Circuit Diagram (contd)
l1o.3 l7.5AJ tUStlln$.uidt hoodritutefd4bor I
V
IwHTPLU
l0t--t---
lrfl |
lE lnv*-| > | ucHT
lA l*tYl
I
CIILING LIGHT
I.l|MOBItEER@NTIOL UIIITR

Page 1002 of 1139

HONDA CIVIC 2002 7.G Workshop Manual ISystem Descriptions
The Multiplex Control System has four internal
functions:. Multiplexing (send multiple signals over sharedwtres). Wake up/sleep (runs at full power only on demand toreduce battery

Page 1003 of 1139

HONDA CIVIC 2002 7.G Workshop Manual Multiplex Control System
Troubleshooting
Mode 1 Tset
1. Remove the drivers dashboard lower cover {see
page 20-59).
2. Check the No. 9 ( 10A) fuse in the under-hood fuse/
relay box and the No. 10 (7.5

Page 1004 of 1139

HONDA CIVIC 2002 7.G Workshop Manual I
Individual
Multiplex
DTC
Probable Cause
The multiplex control unit cannot
receive signals from the gauge
assemDty.lFaulty power or ground to thegauge assembly
2.Faulty gauge assemblv
3.Faulty under
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