What Does P0768 Mean?
Shift Solenoid C is exhibiting intermittent electrical behavior. The TCM periodically detects voltage or current anomalies in the solenoid C circuit that cause sporadic shift quality issues. Symptoms may include random harsh shifts, brief flares, or momentary gear engagement problems that appear and disappear unpredictably.
Common Causes
35%
Loose or corroded connection at the transmission connector causing intermittent contact on solenoid C circuit
30%
Shift solenoid C developing an intermittent internal coil failure
20%
Degraded transmission fluid causing periodic solenoid valve sticking
10%
Damaged or chafed wiring in the internal transmission harness
5%
TCM intermittent driver circuit issue
Diagnostic Steps
1
Monitor solenoid C duty cycle and current in real-time while driving to capture the intermittent fault.
2
Perform a wiggle test on the external transmission connector while watching solenoid C data for signal interruption.
3
Inspect transmission connector pins for corrosion, looseness, or thermal damage.
4
Check solenoid C resistance both cold and at full operating temperature to reveal thermal-related failures.
5
If external wiring is good, drop the pan to inspect the internal harness and replace solenoid C if it shows intermittent behavior.
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
Shift Solenoid C is exhibiting intermittent electrical behavior. The TCM periodically detects voltage or current anomalies in the solenoid C circuit that cause sporadic shift quality issues. Symptoms may include random harsh shifts, brief flares, or momentary gear engagement problems that appear and...
The most common cause of P0768 (Shift Solenoid C Intermittent) is: Loose or corroded connection at the transmission connector causing intermittent contact on solenoid C circuit
Typical repair costs for P0768 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Intermittent shifting issues can cause sudden unexpected vehicle behavior. Drive carefully and avoid heavy-load situations. Schedule diagnosis before the fault becomes constant.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0768 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
