Faulty or misadjusted clutch released switch at the pedal; Damaged wiring, chafing or short to earth or voltage in the switch circuit; Corroded, loose or contaminated connector at the switch or the control module; Switch mounting bracket or pedal assembly worn or moved so the switch no longer actuates properly; Open circuit in the supply or return side of the switch circuit; Fault within the powertrain control module.

P1680

Clutch Released Switch Circuit Open Or Shorted.

Dodge
Powertrain
Manufacturer code
Low severity

How this code is built

P: SystemPowertrain
1: Defined byThe manufacturer
6: AreaComputer and output circuits
80: FaultThe specific fault in that area

What it means

P1680 on a Dodge means the powertrain control module has detected an open or shorted circuit in the clutch released switch, which is fitted to manual gearbox vehicles. The module expects the switch signal to change state as the clutch pedal is pressed and released, and it has seen a voltage or signal that does not make sense for the pedal position.

Symptoms

Malfunction indicator lamp on
Cruise control not working or cutting out
Engine will not crank or start (on models where the switch is part of the start interlock)
Hesitation or surging when pulling away or changing gear
Rough or unstable idle when the pedal is pressed or released

Possible causes

Faulty or misadjusted clutch released switch at the pedallikely
Damaged wiring, chafing or short to earth or voltage in the switch circuitlikely
Corroded, loose or contaminated connector at the switch or the control modulepossible
Switch mounting bracket or pedal assembly worn or moved so the switch no longer actuates properlypossible
Open circuit in the supply or return side of the switch circuitpossible
Fault within the powertrain control modulerare

How to diagnose

Read all stored and pending codes and note any related to cruise control, brake switch or start circuits
Check freeze frame data and clear the code to see how quickly it returns
Inspect the clutch switch, its connector and the pedal bracket for damage, corrosion, looseness or incorrect adjustment
Inspect the wiring between the switch and the control module for chafing, burning or water ingress
With a scan tool, watch the clutch switch status while pressing and releasing the pedal and confirm it changes cleanly
Use a multimeter to check the switch for continuity and correct state change in both pedal positions
Check the circuit for supply voltage, earth and short or open faults, using the wiring diagram for the specific model and engine
Check for a software update or technical bulletin for the model only after the wiring and switch are confirmed good

How to fix

Replace the clutch released switch or adjust it to the correct position
Repair or replace damaged wiring in the switch circuit
Clean, repair or replace the affected connector terminals
Repair or replace the pedal bracket or mounting if worn or distorted
Replace the powertrain control module only after all other causes are ruled out, then have it programmed as required

Can I keep driving?

Low severity

The car can usually be driven and booked in for repair, though cruise control may be unavailable. If it will not start because the switch is not registering, it cannot be driven until the fault is repaired.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.