P1820 CHEVROLET - Internal Mode Switch Circuit 'A' Low
P1820 CHEVROLET Possible Causes
- Faulty Internal Mode Switch
- Internal Mode Switch harness is open or shorted
- Internal Mode Switch circuit poor electrical connection
First diagnose P1820 CHEVROLET code
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 terminals.
Cost of diagnosing the P1820 CHEVROLET code
Labor: 1.0The cost of diagnosing the P1820 CHEVROLET 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.
P1820 CHEVROLET Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1820 Chevrolet DescriptionWith the engine runtime over 5 seconds, system voltage from 8-18v, Fuel Cutoff inactive, engine torque from 30-148 ft-lb (40-200 Nm), the Powertrain Control Module (PCM) detects that the Internal Mode Switch (IMS) signal indicated PARK for 2 seconds and then the IMS indicated a transitional state between D4 and D3, conditions met for 5 seconds.
P1820 CHEVROLET More InformationNeed more information on how to fix the P1820 CHEVROLET code?
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