P0767
Shift Solenoid C Electrical
Powertrain Transmission Control Solenoid Circuit 🟡 Moderate — Fix within a week
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What This Actually Means
In plain language — no jargon

The transmission's Shift Solenoid C has an electrical problem—either a broken wire, bad connection, or failed solenoid. Think of it like a light switch that won't work; the transmission can't engage the right gear.

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Symptoms You May Notice
3 known symptoms for this code
Check Engine Light illuminated
Transmission stuck in limp mode or default gear
Hard shifts or no shift response
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ECM sends a control signal to Shift Solenoid C and monitors the circuit for proper voltage and resistance. It detects opens, shorts, or excessive resistance in the solenoid coil or wiring that prevent normal operation.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Solenoid coil resistance 4–14 ohms (varies by design) Out of range or infinite (open circuit)
Control circuit voltage 12V when commanded ON 0V or unstable voltage
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Electrical connector and wiring harness
Inspect and reseat the solenoid connector, and check for corrosion, loose pins, or damaged wires.
2
Shift Solenoid C
Test solenoid resistance with a multimeter; replace if out of spec or if connector is clean but fault persists.
3
Transmission control wiring and PCM connector
Check PCM and transmission harness for breaks or loose connections if solenoid tests good.