P1788 Acura Code - Automatic Transmission Poor Gear Shift
Quick Answer
P1788 Acura indicates Automatic Transmission Poor Gear Shift. Common causes include Faulty Transmission Control Module (TCM), TCM harness is open or shorted, TCM circuit poor electrical connection. 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
- P1788 Acura indicates Automatic Transmission Poor Gear Shift.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), TCM harness is open or shorted, TCM circuit poor electrical connection.
- 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 P1788 Acura Description
What are the Possible Causes of the DTC P1788 Acura?
- Faulty Transmission Control Module (TCM)
- TCM harness is open or shorted
- TCM circuit poor electrical connection
How to Fix the DTC P1788 Acura?
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 P1788 Acura 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 P1788 Acura Code
1. What does the OBDII code P1788 mean for an Acura?
P1788 indicates an issue with the automatic transmission, specifically poor gear shifting performance due to internal or external faults.
2. What are the common symptoms of code P1788 in an Acura?
Symptoms include harsh or delayed gear shifts, slipping gears, transmission overheating, and reduced fuel efficiency.
3. What causes the P1788 code in an Acura?
Common causes include low transmission fluid, dirty or degraded fluid, faulty transmission solenoids, or a failing transmission control module (TCM).
4. Can driving with code P1788 damage my Acura's transmission?
Yes, ignoring this code can lead to further transmission damage, potentially requiring costly repairs or replacement.
5. How do I fix the P1788 code on my Acura?
Start by checking and replacing the transmission fluid if needed. If the issue persists, inspect transmission solenoids, wiring, and the TCM for faults.
6. Is low transmission fluid a likely cause of the P1788 code?
Yes, low or degraded transmission fluid can cause poor gear shifting and trigger this code.
7. How can I diagnose the P1788 code on my Acura?
Use an OBDII scanner to confirm the code, then physically inspect the transmission fluid, solenoids, and wiring harness for signs of wear or damage.
8. How much does it cost to repair the P1788 code on an Acura?
Repair costs vary depending on the issue, ranging from $100 for fluid replacement to over $1,000 for solenoid or TCM repairs.
9. Can a faulty transmission solenoid trigger the P1788 code?
Yes, a malfunctioning solenoid can prevent proper gear engagement, leading to poor shifting and the P1788 code.
10. Should I reset the code P1788 after repairs?
Yes, after completing repairs, clear the code using an OBDII scanner and test drive the vehicle to ensure the issue is resolved.
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