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Abs/TCS HU/Cm

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the display of DTC U0100, U0101 and/or U0155, using the SST  (WDS or equivalent). (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM]  .)
  2. Access and monitor the "PCM_MSG" and "TCM_MSG" of PID using the SST  (WDS or equivalent).
  3. Referring to the PID/DATA MONITOR, confirm the display status of the PID. (See PID/DATA MONITOR TABLE [MULTIPLEX COMMUNICATION SYSTEM]  .)
  4. Referring to the following table, determine the malfunctioning part of the CAN system.
MALFUNCTION LOCATION SPECIFICATION CHART

Module Communication status Malfunction location
PCM TCM Instrument cluster
ABS/TCS HU/CM (2) (2) (2)
  • Wiring harness B
  • ABS/TCS HU/CM
(2) (1) (1)
  • Wiring harness A
  • PCM
(1) (2) (1)
  • Wiring harness D
  • TCM
(1) (2) (2)
  • Wiring harness C
(1) (1) (2)
  • Wiring harness E
  • Instrument cluster
(1) Normal
(2) Communication error
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