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Home/DTC Codes/Pontiac/Sunfire/1995-2005 2.2L I4/P0602
P0602

Control Module Programming Error

1995-2005 Pontiac Sunfire 2.2L I4

High SeverityPowertrainGeneric (SAE)

Description

The PCM is not properly programmed or calibration is missing.

Symptoms

  • Check Engine Light
  • Various driveability issues
  • Incorrect operation

Common Causes

  • PCM not programmed after replacement
  • Incomplete flash/reprogramming
  • Wrong calibration file

Diagnostic Steps

  1. Verify PCM part number matches application
  2. Reprogram PCM with correct calibration
  3. Check for TSBs

Repair Notes

Reprogram PCM with correct calibration files.

Related Codes

P0601Internal Control Module Memory Check Sum ErrorP0606PCM Processor Fault

Other Powertrain Codes

P0602 on Other Vehicles

Pontiac Aztek

2001-2005 3.4L V6

Pontiac Bonneville

1990-1999 3.8L V6

Pontiac Bonneville

2000-2005 3.8L V6

Pontiac Bonneville GXP

2000-2005 4.6L V8

Pontiac Bonneville GXP

2000-2005 4.6L V8 Northstar

Pontiac Bonneville SSEi

1992-1999 3.8L Supercharged V6

Pontiac Bonneville SSEi

1992-1999 3.8L V6 Supercharged

Pontiac Firebird

1993-1997 3.4L V6

Common Questions

What does code P0602 mean on a 1995-2005 Pontiac Sunfire?

P0602 stands for "Control Module Programming Error". The PCM is not properly programmed or calibration is missing.

What are the symptoms of P0602 on a Pontiac Sunfire?

Common symptoms of P0602 include: Check Engine Light, Various driveability issues, Incorrect operation.

What causes P0602 on a 1995-2005 Pontiac Sunfire?

Common causes of P0602 include: PCM not programmed after replacement, Incomplete flash/reprogramming, Wrong calibration file.

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