DTC U2300:55 [CONNECTIVITY MASTER UNIT]

id0902n7106600

Description

Instrument cluster configuration not implemented
Detection condition
•  The connectivity master unit (CMU) detected any of the following conditions with the ignition switched to ACC or ON (engine off or on).
―  Instrument cluster configuration not read
―  Configuration data cannot be written to connectivity master unit (CMU) memory.
Fail-safe function
Not applicable
Possible cause
Note
•  To correctly write the configuration data, which is sent from the instrument cluster to the connectivity master unit (CMU), to the connectivity master unit (CMU), 30 s or more must have elapsed since the ignition was switched ON (engine off or on).
•  Instrument cluster configuration is not completed.
•  Instrument cluster malfunction
•  Connectivity master unit (CMU) malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY ALL SYSTEM DTCs
•  Clear the DTC for the connectivity master unit (CMU) using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 37 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Are there any modules other than the connectivity master unit (CMU) displaying DTC U2300:55?
Yes
Using the M-MDS, perform the instrument cluster configuration (using As-Built data) again, then go to the next step.
(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA).)
No
Go to Step 3.
2
VERIFY ALL SYSTEM DTCs AGAIN
•  Clear the DTC for the connectivity master unit (CMU) using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 37 s or more.
•  Perform a CMDTC self-test using the M-MDS.
•  Are there any modules other than the connectivity master unit (CMU) displaying DTC U2300:55?
Yes
Replace the instrument cluster, then go to the next step.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No
Go to the next step.
3
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the connectivity master unit (CMU) using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 37 s or more.
•  Retrieve the connectivity master unit (CMU) DTCs using the M-MDS.
•  Is the same DTC displayed?
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.