2020 - 2021 Corvette: Service Bulletin: #20-NA-042: Fuel Gauge May Intermittently Display Erratic and/or Empty Readings, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0462 Set - (May 5, 2021)

#20-NA-042: Fuel Gauge May Intermittently Display Erratic and/or Empty Readings, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0462 Set - (May 5, 2021)

Subject:  Fuel Gauge May Intermittently Display Erratic and/or Empty Readings, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0462 Set

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Chevrolet

Corvette

2020

2021

—

—

6.2L (RPO LT2)

—

 

Involved Region or Country

North America, Middle East, Japan

Condition

Some customers may comment on one or more of the following conditions:

  • Fuel gauge intermittently displays erratic and/or empty readings
  • MIL illuminated

Some technicians may find DTC P0462 (Fuel Level Sensor 1 Circuit Low Voltage) displayed in the Engine Control Module (ECM).

Cause

This condition may be caused by erratic fuel value readings sent from the left fuel tank level sensor.

Correction

If the customer concern has been verified, replace the left side fuel tank level sensor.

Service Procedure

Refer to Fuel Level Sensor Replacement in SI.

Parts Information

Causal Part

Description

Part Number

Qty

X

SENSOR KIT, FUEL LVL

84745186

1

Version

3

Modified

Released March 09, 2020

October 19, 2020 – Added a VIN breakpoint and changed the Warranty Information.

May 05, 2021- Added the 2021 Model Year, removed Breakpoint information, updated the Involved Region or Country section and updated the Warranty Coverage information.

 


Article ID: 1511
Created: May 10, 2021
Last Updated: May 10, 2021

Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/2020-2021-corvette-service-bulletin-20-na-042-fuel-gauge-may-intermittently-display-erratic-and-or-empty-readings-malfunction-indicator-lamp-mil-illuminated-dtc-p0462-set-may-5-2021-1511.html