P0645-A/C CLUTCH RELAY CIRCUIT EXCESSIVE CURRENT

For a complete wiring diagram Refer to Section 8W

• When Monitored:

  With the ignition on and the ECM A/C Clutch Relay command on.

• Set Condition:

  The ECM detects excessive current on the A/C Clutch Relay Control circuit for 0.5 second.

Diagnostic Test

NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed.

NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC.