Mazda MX-6 1998, Workshop Manual

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TROUBLESHOOTING [POWER DOOR LOCK SYSTEM]
No.
Symptom
7 Trunk lid opener does not unlock with trunk lid opener switch (Power door lock system is okay)
8 Door lock monitor inoperative
Symptom Troubleshooting
On-board diagnostic function 1 and/or 2 inoperative
TROUBLESHOOTING HINTS
© Door switches and related wiring harness malfunctions
© Keyless unit malfunction
© CPU malfunction
®
Open or short circuit between keyless unit connector terminal E and CPU connector terminal 20
© Poor ground for keyless unit and/or CPU_______________
STEP INSPECTION
ACTION
Is CPU installed to joint box securely? Yes Remove CPU from joint box.
Then go to next step.
No Install CPU to joint box securely.
Confirm on-board diagnostic function 1 activation.
Turn ignition switch off.
Open driver’s side door only.
Make sure that passenger’s side and rear
doors are closed.
Check continuity between joint box terminal 11
and ground.
Is there continuity?
Yes Go to next step.
f f
IP
10 IN 1M IL 1
k
| 1J
111 1h| 10 IF
IE ID
i c | Iß ) 1a |
No
Check door switch.
If door switch is okay, check for open circuit between joint
box terminal 11 and driver’s side door switch.
Push driver’s side door switch.
Is there continuity between joint box terminal
11 and ground?
Yes Check door switches.
If door switches are okay, check for short to ground circuit
between joint box terminal 11 and each door switch.
No Go to next step.
Is there continuity between joint box terminal
1G and ground?
Yes
Go to next step.
No Repair ground.
W 6 U 9 0 1 W H 1
0 9 -0 1 E -9