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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1075 (Heater & Air Conditioning Control System (Automatic Air Conditioner)) >> DTC/Circuit Diagnosis >> Heater Pump >> Component Inspection (VQ40DE) >> Component Inspection

Component Inspection

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Heater Pump Relay

Check continuity between terminals 3 and 5.

Conditions Continuity
12V direct current supply between terminals 1 and 2 Yes
No current supply No

If NG, replace relay.

Fig 1: Checking Continuity Between Heater Pump Relay Terminals 3 And 5
G04913474Courtesy of NISSAN NORTH AMERICA, INC.