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No. 1 Keyless Entry System Does Not Operate Normally [Keyless Entry System]: Notes
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, verify that the connectors, terminals and wiring harnesses are connected correctly and undamaged.
TROUBLESHOOTING CHART
| 1 |
Keyless entry system does not operate normally |
| DESCRIPTION |
- Malfunction in door lock linkage system, or BCM
|
| POSSIBLE CAUSE |
- Malfunction in BCM power supply
- Open circuit in IG1 and/or B+ power supply circuit
- Open or short circuit in ground circuit
- BCM malfunction
- Malfunction in keyless switch related circuit
- Keyless switch malfunction
- Malfunction in door switch signal circuit
- Open or short circuit in wiring between BCM and door switch
- Door switch malfunction
- Malfunction in door lock/unlock signal circuit
- Door lock actuator malfunction
- Open or short circuit in wiring between BCM and door lock actuator
- Malfunction in turn light signal circuit
- BCM malfunction
- Open or short circuit wiring between BCM and each turn signal light
|
 Courtesy of MAZDA MOTORS CORP.
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