P0758 Mazda Code - Shift Solenoid 'B' Malfunction
Quick Answer
Shift solenoid valve 'B' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0758 Mazda indicates Shift Solenoid 'B' Malfunction.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0758 Mazda Description
What are the Possible Causes of the DTC P0758 Mazda?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 'B' valve
- Shift solenoid 'B' valve harness or connectors
- Shift solenoid 'B' valve circuit is open or shorted
How to Fix the DTC P0758 Mazda?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0758 Mazda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0758 Mazda Code
1. What are the common symptoms of OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
The common symptoms include harsh or delayed shifting, transmission slippage, difficulty shifting gears, and the transmission getting stuck in one gear.
2. What are the possible causes of OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Possible causes include a faulty shift solenoid 'B', low transmission fluid level, dirty or contaminated transmission fluid, electrical issues, or a problem with the transmission control module.
3. How can I diagnose OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Diagnosis typically involves using a scan tool to retrieve the trouble codes, conducting a visual inspection of the transmission and shift solenoid, checking the transmission fluid level and condition, and performing a test drive to observe the shifting behavior.
4. What are the repair options for OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Repair options may include replacing the faulty shift solenoid 'B', addressing any transmission fluid issues, repairing or replacing damaged wiring or connectors, and resetting the transmission control module.
5. Can OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction be fixed at home?
While some DIY enthusiasts may attempt to address this issue at home, it is recommended to have a professional mechanic diagnose and repair the problem due to the complexity of transmission systems.
6. How much does it typically cost to repair OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
The cost of repairs can vary depending on the root cause of the issue, the extent of the damage, and labor rates in your area. On average, expect to pay anywhere from $200 to $800 for parts and labor.
7. Is it safe to continue driving with OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Continuing to drive with this issue can potentially cause further damage to the transmission. It is recommended to have the problem addressed as soon as possible to avoid costly repairs down the line.
8. How long does it typically take to repair OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
The repair time can vary based on the specific diagnosis and parts availability. In general, expect the repair to take anywhere from a few hours to a full day.
9. Are there any preventive measures to avoid OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Regularly servicing your transmission, checking the fluid level and condition, and addressing any transmission issues promptly can help prevent the occurrence of this code.
10. Will resetting the trouble code resolve OBDII code P0758 in a Mazda related to Shift Solenoid 'B' Malfunction?
Resetting the trouble code may temporarily clear the warning light, but it will not fix the underlying issue causing the code to trigger. It is important to diagnose and address the root cause of the problem.
Discuss the causes and fixes for P0758 Mazda OBDII Code
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hey my mazda 2005 2.0 automatic takes of in secon gear dosent let me shift gears manually an it has a shift solenoid b electrical code on it what can I do
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When was the last time you change the transmission fluid? did you Mazda compatible fluid? If you have, then the problem could the the shifting solenoid
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I have Mazda Demio 2005, I check my Shift selenoid and all other valve in gear box are working perfectly. But still now I am getting same error message "Shift selonoid B Electrical" my engine light indicator on also overdrive "Hold" light on. One mechanic check and inform me control box to solenoid wiring is problem. Don't know what part can check in the car. up to now car is moving only jerk at shift change once.
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