DTC P0791-00: Intermediate Sensor Circuit Malfunction: Notes
DTC P0791:00 (FS5A-EL) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0791:00 |
Intermediate sensor circuit malfunction |
| DETECTION CONDITION |
- Under the following conditions, intermediate sensor signal is not input for 5 s
- Selector lever position is D or M position
- Vehicle speed is 40 km/h {25 mph} or more
Diagnostic support note
- The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
- The automatic transaxle warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
- PENDING CODE is available.
- FREEZE FRAME DATA is available.
- The DTC is stored in the TCM memory.
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| FAIL-SAFE FUNCTION |
- Inhibits feedback control
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| POSSIBLE CAUSE |
- Intermediate sensor connector or terminal malfunction
- Open circuit in wiring harness between intermediate sensor terminal A and AT main relay terminal C
- Short to GND in wiring harness between intermediate sensor terminal A and AT main relay terminal C
- Short to GND in wiring harness between intermediate sensor terminal B and TCM terminal AC
- Short to power supply in wiring harness between intermediate sensor terminal B and TCM terminal AC
- Open circuit in wiring harness between intermediate sensor terminal C and body GND
- Intermediate sensor malfunction
- TCM connector or terminal malfunction
- Open circuit in wiring harness between intermediate sensor terminal B and TCM terminal AC
- TCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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