Honda EP3 Service Manual page 832

1 a
1 3 .
Disconnect heater control panel connector A (14P).
Check for continuity between the No. 7 and No. 8
terminals of heater control panel connector A (14P)
a n d b o d y g r o u n d i n d i v i d u a l l y .
HEATER CONTNOL PANEL CONNECTOR A {14PI
ls there continuity?
YES Repair any shortto body ground in the
wire(s) between the heater control panel and the
power transistor.I
NO Go to step 14,
Check for continuity between the following
terminals of heater control panel connector A ( 14P)
and power transistor 4P connector.
'l4Pt
4P:
N o . 7
N o . 4
N o . 8 N o . 2
HEATER CONTROL PANEL CONNECTOR
A (14P)
Wire side ot female terminals
I
z
3 4 1 5 1 6
T 8 9
r o l x l I
1 2 l 1 3 l 1 4
)
8LU/RED
ILU/YEL
POWER TRANSISTOR 4P CONNECTOR
Wire side of female terminals
ls thete continuity?
YES Go to step 15.
NO Repair any open in the wire(s) between the
heater control panel and the power transistor.l
1 4 .
BLU/YEL
1 5 .
l o .
1 7 .
1 8 .
1 9 .
Reconnect heater control panel connector A (14P).
Test the power transistor (see page 21-38).
ls the power transistor OK?
YES Check for loose wires or poor connections at
heater control panel connector A (14P) and at the
power transistor 4P connector. lf the connections
are good, substitute a known-good heater control
panel, and recheck. lf the symptom/indication goes
away, replace the original heater control panel.l
NO Replace the power transistor.I
Disconnect the jumper wire.
Disconnect the blower motor 2P connector.
Measure the voltage between the No, 1 terminal of
the blower motor 2P connector and body ground.
BLOWER MOTOR 2P CONNECTOR
BLU/WHT
Wire side of female terminals
ls thete battery voltage?
YES- Replace the blower motor.l
NO Go to step 20.
Turn the ignition switch OFF.
Remove the blower motor relay from the under-
hood fuse/relay box, and test it (see page 22-511.
ls the relay OK?
YES Go to step 22.
NO- Replace the blower motor relay.l
20.
2 1 .
(cont'd)
21-21