Troubleshooting; Distributor (Turbo) - Mazda 323 1988 Workshop Manual

5
DISTRIBUTOR (TURBO)
H.E.I. TROUBLESHOOTING (TURBO)
Engine is difficult to start
or will not start
1
Verify trouble again
I
Disconnect high tension lead
from spark plug and check if s
spark occurs
* Spark occurs
r
NG
Check for voltage at positive
(+) terminal of ignition coil witl-
Ign. switch in Run position
* 12V is indicated
1) Spark plug electrode(s) worn
2) Spark plug(s) damaged or
deteriorated
1) Replace plug(s)
2) Clean plug(s)
1) Main fuse burnt out
2) Defective ignition switch
3) Wiring between positive (+)
terminal of ignition coil and
ignition switch open
1) Replace
main fuse
2) Replace igni-
tion switch
3) Repair wiring
!
OK
Check for voltage at negative
(-) terminal of ignition coil with
ignition switch in START po-
sition
* Approx. 6V is indicated
1 OK
Check ignition coil
1) Check for continuity of
primary coil
resistance of the
resistance
between primary terminal
OK
1 I
Defective high tension lead
Defective rotor, etc. of dis-
tributor
Defective signal generator (pick-
up coil and igniter assembly)
NG Replace pick-
Check for pick-up coil continuity
H
up coil
7
Replace igniter (control module)
5-40