Engine-Codes - Cadillac - P1682 CADILLAC

P1682 CADILLAC Code - Ignition 1 Switch Circuit 2

- Code Popularity: 29,081 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P1682 CADILLAC Code?

  • Faulty ignition switch
  • Ignition Switch harness is open or shorted
  • Ignition Switch circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How to Fix the P1682 CADILLAC Code?

Start by checking 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.

|What is the cost to diagnose the P1682 CADILLAC code?

Labor: 1.0

The cost to diagnose the P1682 CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1682 CADILLAC code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible no crank or start

|What Does the P1682 CADILLAC Code Mean?

There are 2 ignition 1 voltage circuits supplied to the Engine Control Module (ECM). The first ignition circuit is provided by the powertrain relay, through a fuse. This ignition 1 voltage circuit supplies power to all the internal ECM circuits associated with the throttle actuator control (TAC) operation. The second ignition 1 voltage circuit is supplied by the run/crank relay through a fuse and is used to power the remaining internal ECM circuits. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set.

Ignition 1 Switch Circuit 2

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