Circuit Description

Output Driver Modules (ODM) are used by PCM to turn on current-driven devices needed to control various engine and transaxle functions. Each ODM can control up to 7 outputs, including EVAP purge solenoid driver circuit, by supplying ground to device PCM is commanding on. ODMs can diagnose each circuit individually. If ODM "B" output 5 (EVAP purge solenoid driver circuit) detects an improper voltage level, DTC P1655 is set.

Conditions required to set DTC are:

• Ignition is on.
• An improper voltage level has been detected on EVAP purge solenoid driver circuit.
• Conditions present for at least 30 seconds.