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DTC Table [Multiplex Communication System]

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
HS-CAN

DTC Output Unit DTC Malfunction location Reference for Inspection procedure
Instrument cluster U0001:88(1) Module communication error (HS-CAN) (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0100:00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0100:87 Communication error between the instrument cluster and the PCM (no response) (See SECURITY LIGHT: 16, DTC: U0100:87/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
U0101:00 Communication error to TCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0121.00 Communication error to ABS/TCS HU/CM (With ABS/TCS) Communication error to DSC HU/CM (With DSC)
U0131:00 Communication error to EPS
U0140:00 Communication error to BCM
U0151:00 Communication error to SAS control module
U0214:00 Communication error to Keyless control module
U0233:00 Communication error to BSM control module (RH)
U0401.68 Signal error from PCM (See DTC U0401:68 [INSTRUMENT CLUSTER] .)
U0402:68 Signal error from TCM (See DTC U0402:68 [INSTRUMENT CLUSTER] .)
U0415:68 Signal error from ABS/TCS HU/CM or DSC HU/CM (See DTC U0415:68 [INSTRUMENT CLUSTER] .)
U0515:68 Signal error from keyless control module (See DTC U0515:68 [INSTRUMENT CLUSTER] .)
PCM (L5) U0073:00(1) CAN system communication error (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0101:00 Communication error to TCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0121:00 Communication error to ABS/TCS HU/CM (With ABS/TCS) Communication error to DSC HU/CM (With DSC)
U0140:00 Communication error to BCM
U0151:00 Communication error to SAS control module
U0155:00 Communication error to instrument cluster
PCM (MZI-3.7) U0101:00 Communication error to TCM
ABS/TCS HU/CM (with ABS/TCS) U0001 88(1) CAN system communication error (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0100 00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
U0101 00 Communication error to TCM
U0140:00(2) Communication error to BCM
U0214 00(2), (3) Communication error to keyless control module
U0401 00 Signal error from PCM (See DTC U0401:00/U0401:68 [ABS/TCS] .)
U0401 68 Signal error from PCM
U0402:00 Signal error from TCM (See DTC U0402:00 [ABS/TCS] .)
DSC HU/CM (with DSC) U0001 88(1) CAN system communication error (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0100.00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0101 00 Communication error to TCM
U0140 00(2) Communication error to BCM
U0155 00(2) Communication error to instrument cluster
U0214.00(2), (3) Communication error to keyless control module
U0401.00 Signal error from PCM (See DTC U0401:00/U0401:68 [DYNAMIC STABILITY CONTROL (DSC)] .)
U0401 68 Signal error from PCM
U0402 00 Signal error from TCM (See DTC U0402:00 [DYNAMIC STABILITY CONTROL (DSC)] .)
BSM control module U0001 88(1) CAN system communication error (See DTC U0001 88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0100 00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
U0101.00 Communication error to TCM
U0140.00 Communication error to BCM
U0232 00 Communication error to BSM control module (LH)
U0233 00 Communication error to BSM control module (RH)
U0401.68 Signal error from PCM
U0402.68 Signal error from TCM
U0422 68 Signal error from BCM
U0533.68 Signal error from BSM control module (LH)
U0534 68 Signal error from BSM control module (RH)
TCM (FS5A-EL)(2) U0073:00(1) CAN system communication error (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] )
U0100.00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
TCM (AW6A-EL)(2) U0073.00(1) CAN system communication error (See DTC U0001:88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] )
U0100 00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0121.00 Communication error to DSC HU/CM
U0140.00 Communication error to instrument cluster
U0415.00 Invalid data received from DSC HU/CM (wheel speed)
BCM U0001 88(1) Unit communication error (HS-CAN) (See DTC U0001.88, U0073:00 [MULTIPLEX COMMUNICATION SYSTEM] )
U0100.00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0101.00 Communication error to TCM
U0151.00 Communication error to SAS control module
U0214:00 Communication error to keyless control module
U0401.68 Signal error from PCM (See DTC U0401:68 [BCM] .)
U0402 68 Signal error from TCM (See DTC U0402:68 [BCM] .)
SAS control module U0001.88(1) CAN system communication error (See DTC U0001:88, U0073.00 [MULTIPLEX COMMUNICATION SYSTEM] )
U0155 00 Communication error to instrument cluster (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
Keyless control module U0001 88(1) Unit communication error (HS-CAN) (See DTC U0001:88, U0073.00 [MULTIPLEX COMMUNICATION SYSTEM] )
U0100 00 Communication error to PCM (See DETERMINING MALFUNCTIONING PART (HS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
U0121 00 Communication error to ABS/TCS HU/CM or DSC HU/CM
U0401 68 Signal error from PCM (See DTC U0401:68 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
(1) If only the target DTCs are displayed, perform the corresponding DTC inspection without determining the open circuit location.
(2) ATX
(3) with advanced keyless entry and push button start system
MS-CAN

DTC Output Unit DTC Malfunction location Reference for inspection procedure
Instrument cluster U0010 88(1) Module communication error (MS-CAN) (See DTC U0010.88, 16.ER12 [MULTIPLEX COMMUNICATION SYSTEM] )
U0164.00 Communication error to climate control unit (See DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
Information display U0001088(1) Module communication error (MS-CAN) (See DTC U0010.88, 16.ER12 [MULTIPLEX COMMUNICATION SYSTEM] )
U015500HEC Communication error to instrument cluster (See DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
U016400EATC Communication error to climate control unit
U018400ACU Communication error to audio unit
Audio unit (with audio system) 16 Er11 CAN system communication error  
16 Er12(1) CAN system communication error  
Car-navigation unit (with car-navigation system) Device code 16.Error code 12(1) CAN system communication error (See DTC U001088, 16.ER12 [MULTIPLEX COMMUNICATION SYSTEM] )
Device code 17 Error code 11 Communication error to instrument cluster (See DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] )
Climate control unit U0010:88(1) CAN system communication error (See DTC U0010:88, 16:ER12 [MULTIPLEX COMMUNICATION SYSTEM] .)
U0155:00 Communication error to instrument cluster (See DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM] .)
U0184:00 Communication error to audio unit/car-navigation unit
U0423:68 Invalid date received from instrument cluster
Bluetooth unit (with audio system) 26:Er81 CAN system communication error
Bluetooth unit (with car-navigation system) Device code 26: Error code 81 CAN system communication error
(1) If only the target DTCs are displayed, perform the corresponding DTC inspection without determining the open circuit location.
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