|
|
1F-57 CHANGED BY EFFECTIVE DATE AFFECTED VIN ENGINE CONTROLS M162 GSL ENG SM - 2005.7 RESONANCE FLAP Circuit Description A pneumatically actuated resonance flap is located on the intake manifold, and will be opened and closed by load, which Resonance flap is closed at idle/partial load (less than 3,800/rpm). The switch valve will be adjusted by ECM and Resonance flap is open at full load (over 3,800/rpm). The switch valve will not be adjusted by ECM and resonance flap will Failur Code Description Trouble Area Maintenance Hint • Monitoring the actual operational status and vehicle speed signal • Inspection the Engine Control Module (ECM) pin 97 about short • Inspection the power source short circuit or open to resonance flap • Inspection the resonance flap solenoid and hardware • Inspection the ECM Resonance flap short circuit to battery Resonance flap short circuit to power 228 Resonance flap short circuit to ground or open Resonance flap short circuit to ground or open 229 |