15) DTC P1512, P1513, P1516-P1520, P1537 Or P1538
DTCs P1512, P1513 and P1519 indicate IMRC or IMSC may be stuck closed. KOEO or Continuous Memory self-test failed when IMRC or IMSC monitor circuit signal exceeded expected calibrated range with IMRC or IMSC activated. Possible causes are:
Faulty Vacuum Hoses
Faulty Vacuum Solenoid
Faulty Vacuum Actuator
IMRC Or IMSC Actuator Cable, Lever Or Gears Binding Or Seized
Cables Improperly Routed, Binding Or Seized
Faulty IMRC Or IMSC Actuator
Damaged Or Disconnected IMRC Or IMSC Housing Return Springs
Lever Return Stop Obstructed Or Bent
Lever Wide Open Stop Obstructed Or Bent
IMRC Or IMSC Monitor Circuit Open Or Shorted To VREF
IMRC Or IMSC SIG RTN Circuit Open Or Shorted To VPWR Or GND
IMRC Or IMSC VPWR Circuit Open
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