Mazda 626 Station Wagon, Workshop Manual

Page: 466 / 577

WARNING AND INDICATOR SYSTEM
DTC 27 Operation signal to interior light
INSTR UM ENT C LU STER C O N NEC TO R
1
Q
1 0
1M 1K
1 1 1G 1
E 1C
1
A
1
R 1P
1
N
1
L 1J
1
H
1
F
1
D
1
B
HARNESS SIDE C O N N ECTO R
(VIEW FROM HARNESS SIDE)
Diagnostic procedure
INSPECTION INDICATION
SITUATION ACTION
1 .Turn interior light switch to DOOR
position.
2. Wait for 2 seconds after selecting DTC
27.
C i n
(T urns on and off)
Interior light turns on and
off three times.
Interior light is okay.
Other than stated above. Measure voltage at
instrument cluster
terminal 1H.
Is voltage B+?
• If as specified, replace
instrument cluster.
• If not as specified,
inspect following parts.
— Interior light
— Wiring harness
(Battery—interior
light—instrument
cluster)
{
DTC 29 Rear fog light switch on/off signal
INSTR UM ENT CLUSTER CO N NECTO R
1Q 1 0 1
M
1
K
1 1
1G
1
E 1C
1
A
1
R 1P
1
N
1
L 1J 1H 1F 1 D 1B
HARNESS SIDE C O NNECTO R
(VIEW FROM HARN ESS SIDE)
Diagnostic procedure
STEP INSPECTION INDICATION ACTION
1 1 .Verify that indication is off.
2. Push and hold rear fog light
switch. (Rear fog light switch is
on.)
I J n
Go to next step.
r r
U I I
Measure voltage at instrument cluster terminal 3T.
Is voltage 5 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Rear fog light switch
— Wiring harness (Instrument cluster—rear fog
light switch)
2 1 .Verify that indication is on.
2. Push and hold rear fog light
switch. (Rear fog light switch is
off.)
r r
U I I
Input signals to instrument cluster are okay.
C i n
Measure voltage at instrument cluster terminal 3T.
Is voltage 0 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Rear fog light switch
— Wiring harness (Instrument cluster—rear fog
light switch)
T -4 4