Transmission Control Indicator Lamp Circuit Malfunction
Table of contents
P1779 MERCURY Possible Causes
- Faulty Transmission Control Indicator Lamp
- Transmission Control Indicator Lamp harness is open or shorted
- Transmission Control Indicator Lamp circuit poor electrical connection
How do I fix code P1779 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1779 MERCURY code
The cost of diagnosing the P1779 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1779 MERCURY Description
The Powertrain Control Module (PCM) monitors the Transmission Control Indicator Lamp. The Diagnostic Trouble Code (DTC) will set when the PCM has detected a malfunction in the Transmission Control Indicator Lamp Circuit.