LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System & Fuel System - 6.6L (LLY) - DTC P0401 To DTC P2510) >> DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P060B, P061C, P062C, P062F, or P2610 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Observe the DTCs with the scan tool.
    • If DTC P0606 was set while performing SPS Programming, clear the DTCs and exit the diagnostic.
    • If DTC P0606 was set with DTC P0851 or P0852, diagnose DTC P0851 or P0852 first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
  2. Test the voltage and ground circuits to the control module for the following:
    • A short
    • An open
    • High resistance
    3. IMPORTANT: DTC P2610 can be set with a loss of battery voltage to the ECM with the ignition ON. The ignition must be in the OFF position before disconnecting the ECM.
  3. If DTC P2610 is set, turn the ignition OFF and then completely disconnect the ECM harness connectors from the ECM for at least 1 minute before clearing the DTC. Reinstall all of the ECM connectors and then attempt to clear codes with the scan tool.
    • If DTC P2610 resets after code clear, replace the ECM.
  4. Replace the ECM.
scientia non olet · About LEMON Manuals