2017 Ford Expedition SSV, 4WDFACTORY OEM SERVICE PROCEDURE

Audio Front Control Module (ACM)

DTC Description Action
B1318 Battery voltage Low GO to Pinpoint Test AG .
B1342 ECU is Faulted
NOTE: DTC B1342 can set as a result of a speaker circuit fault. In this case, DTC B2965 should also set. Make sure to repair the speaker circuit fault before diagnosing DTC B1342.
CLEAR the DTCs.REPEAT the self-test.If DTC B1342 is the only  DTC retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) .
B2103 Antenna Not Connected GO to Pinpoint Test A .
B2405 Audio Disc CD Player Thermal Shutdown Fault The ACM was over-temperature. This may occur during extended use. Audio operation can resume after the ACM cools. CLEAR the DTCs. This is normal operation.
B2406 Audio Disc CD Player Internal Fault
NOTE: DTC B1342 may also be set with this DTC.
CLEAR the DTCs.REPEAT the self-test.If DTC B2406 retrieved again, INSTALL a new ACM. REFER to Audio Control Module (ACM) .
B2477 ECU Configuration Failure This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM.
If there have been recent service actions with the ACM, INSTALL as-built data from PTS, following the diagnostic scan tool instructions under Module Programming>As-Built.
If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to Audio Control Module (ACM) .
B2924 Audio Button Stuck GO to Pinpoint Test K .
B2965 Audio System Speaker Circuit Fault The ACM has detected a fault on one or more speaker circuit(s). REFER to the Symptom Chart - Sound Quality to diagnose the speaker concern.
U0140 Lost Communication with Body Control Module (GEM) GO to Pinpoint Test AA .
U0155 Lost Communication With Instrument Panel Cluster (IC) Control Module GO to Pinpoint Test AB .
U0197 Lost Communication With Telephone Control Module GO to Pinpoint Test AD .
U2050 No Application Present This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM.
If there have been recent service actions with the ACM, INSTALL as-built data from PTS, following the diagnostic scan tool instructions under Module Programming>As-Built.
If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to Audio Control Module (ACM) .
U2051 One or More Calibration Files Missing / Corrupt This DTC sets due to incomplete or incorrect PMI procedures. CHECK the vehicle service history for recent service actions related to the ACM.
If there have been recent service actions with the ACM, INSTALL as-built data from PTS, following the diagnostic scan tool instructions under Module Programming>As-Built.
If there have been no recent service actions, INSTALL a new ACM to correct the failure to retain configuration data. REFER to Audio Control Module (ACM) .
Factory Service Tools

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  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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