Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [POWER DOOR LOCK SYSTEM]
3
• Transmitter ID code cannot be reprogrammed
• Neither doors nor trunk lid opener systems do not lock or unlock with transmitter
• Trunk lid opener does not unlock with transmitter
• All doors do not unlock or lock with transmitter
• Driver’s side door does not unlock with transmitter
TROUBLESHOOTING HINTS
© Keyless unit malfunction
© CPU malfunction
© T ra n s m itte r and/or battery malfunction
Note
• If transmitter ID code cannot be reprogrammed, go to step 2.
• For other symptoms, go to step 1.
STEP INSPECTION
ACTION
1
Perform on-board diagnostic function 2.
Does buzzer sound four times on LOCK,
UNLOCK, and TRUNK OPENER signal tests? Yes
Attempt to change transmitter ID code.
If transmitter ID code cannot be changed, go to next step.
No If buzzer sounds two times, replace keyless unit.
If buzzer sounds three times on all three tests, go to step
5.
For different number of buzzer sounds, go to next step.
2 Visually inspect transmitter battery.
Are following items okay?
• Transmitter battery installation (correct
polarity)
• Battery type (CR2025)
Yes
Go to next step.
No Set transmitter battery properly or replace with specified
transmitter battery. (CR2025)
Go to step 6.
3 Visually inspect transmitter.
Is there rust on transmitter battery terminal or
poor connection between battery terminal and
battery?
Yes
Replace transmitter battery or repair transmitter battery
terminal.
Go to step 6.
No Go to next step.
4
Replace known good transmitter battery.
Does keyless entry system operate properly?
Yes Replace transmitter battery.
No Go to next step.
5 Change transmitter ID code by using another
known good transmitter.
Does keyless entry system operate properly? Yes
Replace transmitter and change transmitter ID code.
Go to next step.
No
Replace keyless unit and change transmitter ID code.
Go to next step.
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