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DTC U2300:54 [CONNECTIVITY MASTER UNIT]

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2016 – MX-5 – Body and Accessories

DTC U2300:54 [CONNECTIVITY MASTER UNIT]

Description

Configuration data not received from instrument cluster

Detection condition

  • The connectivity master unit (CMU) cannot receive the configuration data from the instrument cluster for 30 s or more with the ignition switched ON (engine off or on).

Fail-safe

Not applicable

Possible cause

  • DTCs are stored in the instrument cluster.

    • Instrument cluster configuration not implemented

    • Instrument cluster internal memory malfunction

  • Instrument cluster configuration data error

  • Connectivity master unit (CMU) malfunction

System wiring diagram

Not applicable

Diagnostic Procedure

Step

Inspection

Action

1

 VERIFY INSTRUMENT CLUSTER DTCs

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

Go to the next step.

2

 RESET INSTRUMENT CLUSTER CONFIGURATION DATA

Yes

Using the M-MDS, re-perform the instrument cluster configuration using the As-Built data, then go to the next step.

(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA).)

No

Go to Step 4.

3

 VERIFY THAT REPAIRS HAVE BEEN COMPLETED

Yes

Replace the connectivity master unit (CMU), then go to the next step.

(See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION.)

No

Go to the next step.

4

 VERIFY IF OTHER DTCs DISPLAYED

  • Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [CONNECTIVITY MASTER UNIT].)

No

DTC troubleshooting completed.

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