MRCC WARNING LIGHT (AMBER) IS NOT ILLUMINATED [RADAR UNIT]


id1503a1010300


Description

•  The MRCC warning light (amber) is not illuminated when the ignition is switched ON (engine off or on).

Possible malfunction

Note
•  The detection performance of the radar unit has limitations and the mazda radar cruise control (MRCC) system may not operate normally. For the detection performance limitations, refer to the [RADAR UNIT] in the technical guide.
•  The instrument cluster cannot illuminate the MRCC warning light (amber).
―  Instrument cluster malfunction (malfunction in MRCC warning light (amber) illumination circuit)
―  Connector connection malfunction
•  Radar unit cannot illuminate the MRCC warning light (amber).
―  Connector connection malfunction
―  Radar unit malfunction

Diagnostic Procedure

Step

Inspection

Action

1
INSPECT INSTRUMENT CLUSTER
•  Turn off the MRCC warning light (amber) using the M-MDS instrument cluster active command modes WL+IL.
•  Are all the warning lights turned on/off?
Yes
Go to the next step.
No
Replace the instrument cluster.
2
VERIFY INSTRUMENT CLUSTER CONNECTOR CONDITION
•  Disconnect the instrument cluster connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector.
3
VERIFY RADAR UNIT CONNECTOR CONDITION
•  Disconnect the radar unit connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector.
4
INSPECT RADAR UNIT
•  Inspect the radar unit.
•  Is the radar unit normal?
Yes
Symptom troubleshooting is completed.
No
Replace the radar unit.