Test Description

WARNING: This page is about a different variant/trim than selected.

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

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

Step	Action	Yes	No
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Is DTC P0602 set?	Go to Step 3	Go to Step 5
3	Program the powertrain control module (PCM). Refer to Service Programming System (SPS) in Programming and Setup. Does DTC P0602 reset?	Go to Step 4	Go to Step 7
4	Ensure that all tool connections are secure. Ensure that the programming equipment is operating correctly. Ensure that the correct software/calibration package is used. Attempt to program the PCM. Refer to Service Programming System (SPS) in Programming and Setup. Does DTC P0602 reset?	Go to Step 5	Go to Step 7
5	Test all voltage and ground circuits to the control module for the following: A short to ground-Replace fuses, if necessary An open High resistance Did you find and correct the condition?	Go to Step 7	Go to Step 6
6	Replace the PCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 6	-
7	Start the engine. Did the DTC fail this ignition?	Go to Step 2	Go to Step 8
8	Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed?	Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information	System OK