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DTC B1DA5-29; Incorrect Rear Roof Position: Notes

Description Incorrect rear roof position
Detection condition
  • The retractable fastback control module detects an incorrect rear roof position.
Fail-safe
  • Stops retractable fastback operation
Possible cause
  • Open circuit in wiring harness between the following terminals:
    • Retractable fastback control module terminal 4A and rear roof link limit switch (RH) terminal B
    • Retractable fastback control module terminal 4E and rear roof link limit switch (RH) terminal C
    • Retractable fastback control module terminal 4J and rear roof link limit switch (LH) terminal B
    • Retractable fastback control module terminal 4F and rear roof link limit switch (LH) terminal C
    • Retractable fastback control module terminal 4F and rear roof link limit switch (LH) terminal D
  • Short to ground in wiring harness between the following terminals:
    • Retractable fastback control module terminal 4D and rear roof link limit switch (RH) terminal A
    • Retractable fastback control module terminal 4I and rear roof link limit switch (LH) terminal A
  • Retractable fastback control module malfunction
  • Rear roof link limit switch (RH) malfunction
  • Rear roof link limit switch (LH) malfunction
Fig 1: Retractable Fastback Control Module Communication Diagram (B1DA5 29)
G11275656Courtesy of MAZDA MOTORS CORP.
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