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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1304 (Engine Controls Diagnostic (DTC P0491 To DTC P2130) -- 5.7L) >> Diagnosis >> DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 >> Test Description

Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 2:  A DTC P0602 indicates the PCM is not programmed.
DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

Step Action Yes No
1 Did you perform the Diagnostic System Check-Engine Controls? Go to Step 2  Go to Diagnostic System Check - Engine Controls
2  Is DTC P0602 set? Go to Step 3  Go to Step 5 
3 Program the PCM. Refer to Service Programming System (SPS) in Programming.
Does DTC P0602 reset?		 Go to Step 4  Go to Step 6 
4
  1. Ensure that all tool connections are secure.
  2. Ensure that the programming equipment is operating correctly.
  3. Ensure that the correct software/calibration package is used.
  4. Attempt to program the PCM. Refer to Service Programming System (SPS) in Programming.
Does DTC P0602 reset?		 Go to Step 5  Go to Step 6 
5 Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement .
Did you complete the replacement?		 Go to Step 6  -
6
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 30 seconds.
  3. Start the engine.
Did the DTC fail this ignition?		 Go to Step 2  Go to Step 7 
7 Observe the Capture Info with a scan tool.
Are there any DTCs that have not been diagnosed?		 Go to Diagnostic Trouble Code (DTC) List System OK
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