Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [POWER DOOR LOCK SYSTEM]
STEP INSPECTION
ACTION
Inspect do or lock switch.
e r 0 9 -1 4 DOOR LOCK SWITCH
INSPECTION
Is door lock switch okay?
Yes
Go to next step and reconnect do or lock sw itch connector.
No Replace door lock switch.
Check for continuity between terminal B at
door lock switch connector and ground?
Is there continuity?
Yes Go to next step.
No Repair wiring harness between door lock switch and
ground.
DOOR LOCK
■ SWITCH
CONNECTOR
D O
B
A
W 6 U 9 0 1 W E L
Check for continuity between D.LOCK 30 A
fuse and terminal C at door lock tim er unit 1
connector and terminal C at door lock timer
unit 2 connector?
Is there continuity?
Yes
Check for open or short circuit between terminal D at door
lock timer unit 1 and terminal B at door lock actuator.
When there is continuity, replace CPU.
No
Repair wiring harness between D.LOCK 30 A fuse and
door lock timer unit 1 or door lock tim er unit 2.
DOOR LOCK
TIMER UNIT 2
G E C A
H F D B
W 6 U 9 0 1 W E M
Remove driver’s side front scuff plate.
Remove driver’s side front side trim.
Remove nut fixed in joint box and remove
CPU from joint box.
Measure voltage at joint box terminal 1J?
Is voltage B+?
Yes Go to next step.
No
Repair wiring harness between ROOM 15 A fuse and
CPU.
W 6 U 9 0 1 W E N
0 9 -0 1 E -1 8