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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1002 (Automatic Transmission (Re0F09B)) >> Component Diagnosis >> P1740 Lock Up Select Solenoid Valve >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART

DTC Item (CONSULT-III screen term) Malfunction is detected when... Possible cause
P1740 LU-SLCT SOL/CIRC
  • Normal voltage is not applied to solenoid due to cut line, short, etc.
  • TCM detects as irregular by comparing target value with monitor value.
  • Harness or connectors (Solenoid circuit is open or shorted.)
  • Lock up select solenoid valve
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