Engine-Codes - Chevrolet - B0521 CHEVROLET

B0521 CHEVROLET - Tachometer Signal Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

B0521 CHEVROLET Possible Causes

  • Faulty Instrument Panel Cluster (IPC)
  • Instrument Panel Cluster (IPC) harness is open or shorted
  • Instrument Panel Cluster (IPC) circuit poor electrical connection

How do I fix code B0521 CHEVROLET

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 connector's pins.

Cost of diagnosing the B0521 CHEVROLET code

Labor: 1.0

The cost of diagnosing the B0521 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0521 CHEVROLET Meaning

The Instrument Panel Cluster (IPC) receives engine RPM information from the Powertrain Control Module (PCM) on a dedicated engine speed input to IPC. IPC also receives engine RPM data on the serial data line. IPC monitors engine RPM output information sent from PCM for an out of range condition. The PCM sets the Diagnostic Trouble Code (DTC) when the IPC detects that the engine RPM is at least 7400 RPM.

B0521 CHEVROLET More Information

Need more information on how to fix the B0521 CHEVROLET code?
Get Access to Factory Service Manuals

Need more help?

Get the B0521 Chevrolet code diagnosed by a professional: Find a repair shop in your area