DTC B1DA7-29: Incorrect Roof Position [Retractable Hardtop Control Module]: Notes
WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1DA7:29 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE
| Description |
Incorrect roof position |
| Detection condition |
- The retractable hardtop control module detects an incorrect roof position.
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| Fail-safe |
- Stops retractable hardtop operation
|
| Possible cause |
- Open circuit in wiring harness between the following terminals:
- Retractable hardtop control module terminal 1G and top lock switch terminal A
- top lock switch terminal B and body ground
- Top lock switch malfunction
- Short to ground in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4B and front roof link limit switch (RH) terminal A
- Retractable hardtop control module terminal 4C and front roof link limit switch (RH) terminal B
- Retractable hardtop control module terminal 4A and front roof link limit switch (RH) terminal C
- Open circuit in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4B and front roof link limit switch (RH) terminal A
- Retractable hardtop control module terminal 4C and front roof link limit switch (RH) terminal B
- Retractable hardtop control module terminal 4A and front roof link limit switch (RH) terminal C
- Front roof link limit switch (RH) malfunction
- Short to ground in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4L and front roof link limit switch (RH) terminal C
- Retractable hardtop control module terminal 4M and front roof link limit switch (RH) terminal D
- Retractable hardtop control module terminal 4K and front roof link limit switch (RH) terminal B
- Open circuit in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4L and front roof link limit switch (LH) terminal C
- Retractable hardtop control module terminal 4M and front roof link limit switch (LH) terminal D
- Retractable hardtop control module terminal 4K and front roof link limit switch (LH) terminal B
- Front roof link limit switch (LH) malfunction
- Short to ground in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4D and rear roof link limit switch (LH) terminal A
- Retractable hardtop control module terminal 4A and rear roof link limit switch (LH) terminal B
- Retractable hardtop control module terminal 4E and rear roof link limit switch (LH) terminal C
- Open circuit in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4D and rear roof link limit switch (RH) terminal A
- Retractable hardtop control module terminal 4A and rear roof link limit switch (RH) terminal B
- Retractable hardtop control module terminal 4E and rear roof link limit switch (RH) terminal C
- Rear roof link limit switch (RH) malfunction
- Short to ground in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4I and rear roof link limit switch (LH) terminal A
- Retractable hardtop control module terminal 4J and rear roof link limit switch (LH) terminal B
- Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
- Open circuit in wiring harness between the following terminals:
- Retractable hardtop control module terminal 1G and top lock switch terminal A
- top lock switch terminal B and body ground
- Retractable hardtop control module terminal 4J and rear roof link limit switch (LH) terminal B
- Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
- Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal D
- Short to ground in wiring harness between the following terminals:
- Retractable hardtop control module terminal 4B and front roof link limit switch (RH) terminal A
- Retractable hardtop control module terminal 4C and front roof link limit switch (RH) terminal B
- Retractable hardtop control module terminal 4A and front roof link limit switch (RH) terminal C
- Retractable hardtop control module terminal 4L and front roof link limit switch (RH) terminal C
- Retractable hardtop control module terminal 4M and front roof link limit switch (RH) terminal D
- Retractable hardtop control module terminal 4K and front roof link limit switch (RH) terminal B
- Retractable hardtop control module terminal 4D and rear roof link limit switch (LH) terminal A
- Retractable hardtop control module terminal 4A and rear roof link limit switch (LH) terminal B
- Retractable hardtop control module terminal 4E and rear roof link limit switch (LH) terminal C
- Retractable hardtop control module terminal 4I and rear roof link limit switch (LH) terminal A
- Retractable hardtop control module terminal 4J and rear roof link limit switch (LH) terminal B
- Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
- Rear roof link limit switch (LH) malfunction
- Retractable hardtop control module malfunction
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 Courtesy of MAZDA MOTORS CORP.
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