Ignition 1 Switch Circuit 2 (Driver 5 Line 2)
2014-2016 Chevrolet Spark EV Electric Motor
Description
The PCM detected a voltage difference exceeding the maximum allowable threshold between the two circuits that supply it with battery voltage. This code is commonly caused by a failing ignition switch, which is a known issue on Trailblazer, Envoy, and SSR models among others.
Symptoms
- Check Engine Light
- Intermittent stalling
- Reduced Engine Power message
- Multiple warning lights
- Electrical accessories cutting out
- Intermittent no-start
Common Causes
- Failed or failing ignition switch (most common)
- Defective fuse or fuse box
- Loose PCM power connector
- Corroded ignition switch connector
- Damaged wiring in ignition circuit
Diagnostic Steps
- Test voltage at both PCM power supply circuits
- Compare voltage between the two circuits
- Inspect ignition switch connector
- Test ignition switch output under load
- Check all related fuses
Repair Notes
Replace ignition switch (most common fix). Check fuses and connectors. This is a known issue on many GM trucks and SUVs, particularly Trailblazer, Envoy, and SSR.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P1682 on Other Vehicles
Chevrolet Astro
1995-2005 4.3L V6 Vortec
Chevrolet Avalanche
2002-2006 5.3L V8 Vortec
Chevrolet Avalanche
2002-2006 8.1L V8 Vortec
Chevrolet Avalanche
2007-2013 5.3L V8 Vortec
Chevrolet Avalanche
2007-2013 6.0L V8 Vortec
Chevrolet Aveo
2012-2018 1.6L I4
Chevrolet Beat
2018-2021 1.2L I4
Chevrolet Blazer
1995-2005 4.3L V6 Vortec
Common Questions
What does code P1682 mean on a 2014-2016 Chevrolet Spark EV?
P1682 stands for "Ignition 1 Switch Circuit 2 (Driver 5 Line 2)". The PCM detected a voltage difference exceeding the maximum allowable threshold between the two circuits that supply it with battery voltage. This code is commonly caused by a failing ignition switch, which is a known issue on Trailblazer, Envoy, and SSR models among others.
What are the symptoms of P1682 on a Chevrolet Spark EV?
Common symptoms of P1682 include: Check Engine Light, Intermittent stalling, Reduced Engine Power message, Multiple warning lights, Electrical accessories cutting out, Intermittent no-start.
What causes P1682 on a 2014-2016 Chevrolet Spark EV?
Common causes of P1682 include: Failed or failing ignition switch (most common), Defective fuse or fuse box, Loose PCM power connector, Corroded ignition switch connector, Damaged wiring in ignition circuit.