Honda Civic 2002-2003 Service Manual page 988

, J
J
r:-:'I
--=:.J
6. Disconnect the M, P, K and
J
connectors from the under-dash fuse/relay box, and make these input tests at the connectors.
If any test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, the multiplex control unit must be faulty. Replace the under-dash fuse/relay box assembly.
Cavity Wire Test condition Test: Desired result
Possible cause
if
result is not obtained
K2 BLU/ORN
Under all conditions Check for continuity between • An open in the wire
the K2 terminal and the keyless
receiver unit
5P
connector
disconnected:
There should be continuity.
M7 YELJBLK Connect J7 terminal to M7 Check actuator operation: • Faulty driver's door lock actuator
MS
YEL [MS] terminal, and M9 The driver's door lock actuator
• An open in the wire
[M7] terminal to J4
should lock [unlock]
terminal.
M6 YELJBlK Connect J7 terminal to M6 Check actuator operation: • Faulty passenger's door lock actuator
MS YEL [MS] terminal, and M8 The passenger's door lock • An open in the wire
[M6] terminal to J4 actuator should lock [unlock]
terminal.
P16
YEL
Connect J7 terminal to P17
Check actuator operation: • Faulty hatch lock actuator
P17
YELJBlK [P16] terminal, and P16 The hatch lock actuator should • An open in the wire
[P17] terminal to J4 lock [unlock]
terminal.
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