Car Codes diagnostic trouble code
…ITCH A) STUCK ON P0872:00 - OIL PRESSURE SWITCH NO. 3 (OIL PRESSURE SWITCH A) STUCK ON P0877:00 - OIL PRESSURE SWITCH NO. 4 (OIL PRESSURE SWITCH B) STUCK ON THE DTC P0780 AND/OR P1738 MAY ALSO BE STORED TOGETHER. P0780:00 - GEAR SHIFTING MALFUNCTION P1738:00 - AUTOMATIC TRANSAXLE INTERNAL MALFUNCTION THIS IS CAUSED BY THE OIL PRESSURE SWITCH A AND/OR B AT THE CONTROL VALVE BODY TEMPORARILY OR PERMANENTLY GETTING STUCK DUE TO CONTAMINATIO…
Code interpretation
What P1738 means
This code indicates Vehicle fault code with verified manufacturer evidence Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.
Driver experience
Symptoms you may notice
A stored diagnostic trouble code or a related system warning.
Test, do not guess
Possible causes
The precise cause depends on the reporting module, vehicle specification, circuit condition and software level.
Evidence-led checks
Recommended diagnostic route
Save the complete scan and confirm the code against model-specific technical information before testing.
- Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
- Prove the basicsTest battery condition, system voltage, power and grounds.
- Identify the reporterConfirm the module that logged the code and check circuit integrity.
- Compare live dataReview commanded and actual values under the conditions that set the code.
- Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
- Verify the repairClear the code only after recording evidence, then confirm it does not return.
Vehicle fitment
Vehicle applicability
Mazda MX-5, Mazda CX-5, Mazda CX-30
Before clearing
Can the code be cleared?
Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.
Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.
Verified public evidence
Manufacturer and model coverage
93 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.
CX-3 · 2018 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2016 · Powertrain
…VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH ONE OR MORE OF THESE DTCS STORED IN THE TCM MEMORY (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2014 · Powertrain
Check Engine light and A/T Warning light on with one or more of these DTS (P0842, P0847, P0872, P0877, P0780, P1738) Stored in TCM Memory
SourceCX-30 · 2023 · Powertrain
Some customers may see the A/T warning light on during (or immediately after) engine start-up with DTCs P073D:00-TCM / P1738:00-TCM stored. P073D:00-TCM: Turbine/input shaft speed sensor: Sensor output range malfunction…
SourceCX-3 · 2016 · Powertrain
Check Engine light and A/T Warning light on with one or more of these DTS (P0842, P0847, P0872, P0877, P0780, P1738) Stored in TCM Memory
SourceCX-30 · 2024 · Powertrain
Some customers may see the A/T warning light on during (or immediately after) engine start-up with DTCs P073D:00-TCM / P1738:00-TCM stored. P073D:00-TCM: Turbine/input shaft speed sensor: Sensor output range malfunction…
SourceCX-30 · 2025 · Powertrain
Some customers may see the A/T warning light on during (or immediately after) engine start-up with DTCs P073D:00-TCM / P1738:00-TCM stored. P073D:00-TCM: Turbine/input shaft speed sensor: Sensor output range malfunction…
SourceCX-3 · 2016 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2017 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2018 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2019 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2020 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2021 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2016 · Powertrain
…VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH ONE OR MORE OF THESE DTCS STORED IN THE TCM MEMORY (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2016 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2017 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2018 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2019 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2016 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
SourceCX-3 · 2017 · Powertrain
…vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780,…
Source