Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [POWER DOOR LOCK SYSTEM]
STEP INSPECTION
ACTION
14 Make sure that driver’s side door is opened.
Connect volt-meter between keyless
connector terminal E and ground.
Perform following procedures within 30
seconds:
© Repeat following four times:
• Turn ignition switch to ON.
• Turn ignition switch to LOCK.
S
Remove ignition key from steering lock.
Repeat following three times:
• Push driver’s side door switch.
• Release driver’s side door switch.
Measure voltage at keyless unit connector
terminal E.
• 5 V - > 0 V (during on-board diagnostic
activate verification buzzer sounds)
• 5 V -> 3.5 V (3 seconds later after buzzer
sounded)
• 5 V -> 1.7 V (6 and 9 seconds later after
buzzer sounded)
Are voltages okay?
W 6 U 9 0 1 W E 8
Yes
Verify buzzer sounds 1 time.
If not, replace CPU.
No Replace keyless unit.
„ On-board diagnostic function 1 inoperative (Door lock and/or trunk lid opener system does not lock or unlock
during on-board diagnostic function 1)___________________________________________________________________
TROUBLESHOOTING HINTS
© Keyless unit malfunction
© CPU malfunction
© Power door lock system malfunction___________________________________________________________________________
0 9 -0 1 E -1 4