Monitor Switch Function - Mazda 323 1988 Workshop Manual

MONITOR SWITCH FUNCTION
4B
Headlight switch
Turn ON headlight switch, and check that monitor
NO
lamp illuminates
t-
YES
Headlight switch is OK
Turn OFF headlight switch
Rear defroster switch
tar lamp illuminates
YES
Rear defroster switch is OK
Turn OFF rear defroster switch
PC:
l
E/L control unit malfunction
(Refer to page 48-85)
l
Headlight switch malfunction
(Refer to Section 15)
l
Open circuit in wiring harness from headlight
switch to E/L control unit
l
Engine control unit (1 I) terminal malfunction
PC:
l
E/L control unit malfunction
(Refer to page 46-85)
l
Rear defroster switch malfunction
(Refer to Section 15)
l
Open circuit in wiring harness from rear
defroster switch to E/L control unit
l
Engine control unit (1 I) terminal malfunction
Water therm0 switch circuit (not include switch inspection)
Disconnect water then-no switch connector from wa-
ter thermo switch and check that monitor lamp il-
_ luminates
YES
Water thermo switch circuit is OK
Connect the water thermo switch connector
I
PC:
l
E/L control unit malfunction
(Refer to page 48-85)
l
Water therm0 switch or relay malfunction
(Refer to Section 3A)
. Open circuit in wiring harness from water ther-
mo switch to E/L control unit
l
Engine control unit (1 I) terminal malfunction
48-25