Dodge RAM TRUCK 1500 1995 Service Manual page 519

8T - 2 POWER MIRRORS
BR
D I A G N O S I S
POWER MIRRORS
(1) Check fuse 17 in fuseblock module. If OK, go to
next step. If not OK, replace fuse.
(2) Check for battery voltage at fuse 17 in fuse-
block module. If OK, go to next step. If not OK, re­
pair circuit to fuse 1 in Power Distribution Center
(PDC).
(3) Remove power mirror switch from the door
trim panel. See Power Mirror Switch Remove/Install.
(4) Disconnect wiring harness connector from
switch. Check for battery voltage at pink wire. If OK,
go to next step. If not OK, repair circuit to fuse 17 in
fuseblock module.
(5) Check for continuity between black/orange wire
in switch harness connector and a good ground.
There should be continuity. If OK, go to next step. If
not OK, repair circuit to ground.
(6) Check switch continuity as shown in the Mirror
Switch Continuity chart (Fig. 2). If OK, go to next
step. If not OK, replace switch.
M i r r o r Selector K n o b i n "I" Position
MOVE LEVER
CONTINUITY BETWEEN
YL/BK and PK, YL/PK and BK
YL and PK
YL/PK and PK, DB and BK
DB/WT and BK
YL/PK and PK, YL and BK
YL/BK and BK
YL/PK and BK, DB and PK
DB/WT and PK
Miirir©/ SoSestor K n o b i n " R " Position
MOVE LEVER
C O N T I N U I T Y i E T W E I N
W T and BK, YL and PK
YL/BK and PK
W T and PK, DB and BK
DB/WT and BK
W T and PK, YL and BK
YL/BK and BK
0
W T and BK, DB and PK
DB/WT and PK 1
J928T-5
Fig. 2 Mirror Switch Continuity
(7) Use 2 jumper wires, one connected to a 12-volt
source, and the other connected to a good body
ground. See Mirror. Test chart (Fig. 3) for correct
jumper wire connections at the power mirror switch
connector (harness side, not switch side). If mirror(s)
don't respond as indicated, remove mirror connector
as described in Power Mirror Remove/Install. Check
the wires in that circuit between mirror and switch
for a short or open. If circuits check OK, replace mir­
ror assembly.
12 ¥©its
M S H i O I I R E A C T I O N
12 ¥©its
Right Loft
YL/BK WT UP
YL
YL/PK
UP
WT YL/BK
D O W N
YL/PK
YL
D O W N
WT DB RIGHT
YL/PK DB/WT RIGHT
DB
W T LEFT
DB/WT YL/PK LEFT
J928T-4
Fig. 3 Mirror Test
AUTOMATIC DAY/NIGHT MIRROR
(1) Check fuse 15 in fuseblock module. If OK, go to
next step. If not OK, replace fuse.
(2) Turn ignition switch to the ON position. Check
for battery voltage at fuse 15 in fuseblock module. If
OK, go to next step. If not OK, repair circuit from
fuse to ignition switch as required.
(3) Unplug harness connector from mirror (Fig. 4).
Check for battery voltage at connector cavity with
brown/light green wire. If OK, go to next step. If not
OK, repair circuit to fuse 15 as required.
FORWARD FACING SENSOR J948T-9
Fig. 4 Automatic Day/Night Mirror
• (4) Turn ignition switch to OFF position. Check for
continuity between connector cavity with black wire
and a good ground, There should be continuity. If
OK, go to next step. If not OK, repair circuit to
ground as required.
(5) Turn ignition switch to ON position. Set park­
ing brake. Place transmission gear selector in Re­
verse position. Check for battery voltage at connector
cavity with violet/black wire. If OK, plug mirror con­
nector back in and go to next step. If not OK, repair
circuit to back-up lamps as required.