P2738 Cadillac Code - Transmission Control Solenoid Valve 6 Control Circuit Low Voltage
Quick Answer
The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid 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
- P2738 Cadillac indicates Transmission Control Solenoid Valve 6 Control Circuit Low Voltage.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid 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 P2738 Cadillac Description
What are the Possible Causes of the DTC P2738 Cadillac?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Transmission Control Solenoid Valve
- Transmission Control Solenoid Valve harness is open or shorted
- Transmission Control Solenoid Valve circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
How to Fix the DTC P2738 Cadillac?
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 P2738 Cadillac 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.
Need more information about the P2738 Cadillac code?
Need more information on how to fix the P2738 Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2738 Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2738 Cadillac Code
What does the OBDII code P2738 mean on a Cadillac?
P2738 indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit, specifically a low voltage condition.
What are the symptoms of code P2738 in a Cadillac?
Common symptoms include harsh or delayed shifting, transmission slipping, reduced fuel efficiency, or the vehicle going into limp mode.
What causes the P2738 code to appear?
Possible causes include a faulty transmission control solenoid, damaged wiring or connectors in the solenoid circuit, low transmission fluid levels, or a malfunctioning transmission control module (TCM).
Can low transmission fluid cause the P2738 code?
Yes, low or contaminated transmission fluid can cause erratic solenoid operation and trigger the P2738 code.
How do I diagnose the P2738 code on my Cadillac?
Start by checking the transmission fluid level and condition, inspect the solenoid wiring and connectors for damage, and use a scan tool to monitor solenoid operation.
Is it safe to drive with the P2738 code active?
Driving with this code can lead to further transmission damage or unsafe driving conditions due to shifting problems. It’s best to address the issue promptly.
How much does it cost to fix the P2738 code on a Cadillac?
Repair costs vary but may range from $150 to $400 for solenoid replacement. Wiring or TCM repairs can increase costs further.
Can I fix the P2738 code myself?
If you’re experienced with automotive repairs, you can check wiring, replace the solenoid, or refill transmission fluid. Otherwise, professional assistance is recommended.
Does resetting the code fix the P2738 issue?
Resetting the code might temporarily clear it, but the underlying issue must be resolved to prevent it from returning.
What tools are needed to troubleshoot the P2738 code?
You’ll need a scan tool, a multimeter for testing voltage, and basic hand tools to inspect and replace components if necessary.
Discuss the causes and fixes for P2738 Cadillac OBDII Code
Code P2738 Cadillac comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
