LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2017 >> 6 Touring, Automatic Trans >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Connectivity Master Unit DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Connectivity Master Unit DTCS

CONNECTIVITY MASTER UNIT DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC No. Description Service Information
B1087:87 Communication error with commander switch (See DTC B1087:87 [CONNECTIVITY MASTER UNIT] .)
B108E:04 Center display internal malfunction (See DTC B108E:04 [CONNECTIVITY MASTER UNIT] .)
B108E:06 HDCP authorization error (See DTC B108E:06 [CONNECTIVITY MASTER UNIT] .)
B108E:1C Low power supply voltage input to center display (See DTC B108E:1C [CONNECTIVITY MASTER UNIT] .)
B108E:87 Center display circuit malfunction (See DTC B108E:87 [CONNECTIVITY MASTER UNIT] .)
B116A:11 Microphone circuit malfunction (See DTC B116A:11 [CONNECTIVITY MASTER UNIT] .)
B116A:12 Microphone circuit malfunction (See DTC B116A:12 [CONNECTIVITY MASTER UNIT] .)
B116A:92 Microphone circuit malfunction (See DTC B116A:92 [CONNECTIVITY MASTER UNIT] .)
B119F:11 GPS antenna circuit malfunction (See DTC B119F:11 [CONNECTIVITY MASTER UNIT] .)
B119F:13 GPS antenna circuit malfunction (See DTC B119F:13 [CONNECTIVITY MASTER UNIT] .)
B119F:1D GPS antenna circuit malfunction (See DTC B119F:1D [CONNECTIVITY MASTER UNIT] .)
B119F:92 GPS antenna circuit malfunction (See DTC B119F:92 [CONNECTIVITY MASTER UNIT] .)
B11BA:11 Steering switch circuit malfunction (See DTC B11BA:11 [CONNECTIVITY MASTER UNIT] .)
B11BA:15 Steering switch circuit malfunction (See DTC B11BA:15 [CONNECTIVITY MASTER UNIT] .)
B1201:11 Steering switch circuit malfunction (See DTC B1201:11 [CONNECTIVITY MASTER UNIT] .)
B1201:15 Steering switch circuit malfunction (See DTC B1201:15 [CONNECTIVITY MASTER UNIT] .)
B1238:01 With out Bose ®
  • Speaker circuit malfunction With Bose ®
  • Audio amplifier circuit malfunction
(See DTC B1238:01 [CONNECTIVITY MASTER UNIT] .)
B1238:16 Tuner and amp unit (TAU) low power supply voltage input (See DTC B1238:16 [CONNECTIVITY MASTER UNIT] .)
B1238:87 RDS traffic information transfer circuit malfunction (See DTC B1238:87 [CONNECTIVITY MASTER UNIT] .)
B1252:09 Auxiliary jack/USB port/SD card slot hub circuit malfunction (See DTC B1252:09 [CONNECTIVITY MASTER UNIT] .)
B1252:1D Auxiliary jack/USB port/SD card slot hub circuit malfunction (See DTC B1252:1D [CONNECTIVITY MASTER UNIT] .)
B1252:87 Communication error with auxiliary jack/USB port/SD card slot hub (See DTC B1252:87 [CONNECTIVITY MASTER UNIT] .)
B12BD:11 Rear mount camera circuit malfunction (See DTC B12BD:11 [CONNECTIVITY MASTER UNIT] .)
B12BD:87 Rear mount camera trans mission error (See DTC B12BD:87 [CONNECTIVITY MASTER UNIT] .)
B1D19:64 Incompatible disc inserted (See DTC B1D19:64 [CONNECTIVITY MASTER UNIT] .)
B1D19:79 CD player disc read error (See DTC B1D19:79 [CONNECTIVITY MASTER UNIT] .)
B1D19:98 Abnormal CD player temperature (See DTC B1D19:98 [CONNECTIVITY MASTER UNIT] .)
U0001:88 Module communication error (HS-CAN) (See DTC U0001:88/U0100:00/U0101:00/U0104:00/U0121:00/U0131:00/U0140:00/U0151:00/U0155:00/U0182:0 0/U0214:00/U0235:00/U023A:00 [CONNECTIVITY MASTER UNIT] .)
U0028:88 Unit communication error (LOC ALCAN) (See DTC U0028:88 [CONNECTIVITY MASTER UNIT] .)
U0100:00 Communication error with PCM (See DTC U0001:88/U0100:00/U0101:00/U0104:00/U0121:00/U0131:00/U0140:00/U0151:00/U0155:00/U0182:0 0/U0214:00/U0235:00/U023A:00 [CONNECTIVITY MASTER UNIT] .)
U0101:00 Communication error with TCM
U0104:00 Communication error with radar unit
U0121:00 Communication error with ABS HU/CM or DSC HU/CM
U0131:00 Communication error with EPS control module
U0140:00 Communication error with front body control module (FBCM)
U0151:00 Communication error with SAS control module
U0155:00 Communication error with instrument cluster
U0182:00 Communication error with AFS control module
U0184:00 Communication error with tuner and amp unit (TAU) (See DTC U0184:00/U0187:00 [CONNECTIVITY MASTER UNIT] .)
U0187:00 Communication error with CD player
U0214:00 Communication error with start stop unit (See DTC U0001:88/U0100:00/U0101:00/U0104:00/U0121:00/U0131:00/U0140:00/U0151:00/U0155:00/U0182:00/U0214:00/U0235:00/U023A:00 [CONNECTIVITY MASTER UNIT] .)
U0235:00 Communication error with forward sensing camera (FSC)
U023A:00 Communication error with forward sensing camera (FSC)
U2300:54 Configuration data not received from instrument cluster (See DTC U2300:54 [CONNECTIVITY MASTER UNIT] .)
U2300:55 Instrument cluster configuration not implemented (See DTC U2300:55 [CONNECTIVITY MASTER UNIT] .)
U3000:42 Connectivity master unit (CMU) internal malfunction (poor data read-outs) (See DTC U3000:42 [CONNECTIVITY MASTER UNIT] .)
U3003:16 Low ACC power supply voltage input to connectivity master unit (CMU) (See DTC U3003:16 [CONNECTIVITY MASTER UNIT] .)