Tech Tip: Nissan MIL On, DTC P0603 – ECM Power Supply
If you have a vehicle with the MIL on that has a DTC P0603 stored in the ECM, perform the diagnostic steps in this bulletin first.
Tech Tip: Nissan Low Airflow from HVAC Front Air Vents
If you confirm one of the above vehicles has low airflow coming from the HVAC front air vents due to evaporator freeze-up, and the HVAC unit surface temperature around the evaporator is about 32 degrees Fahrenheit, causing ice to form on the evaporator, follow the Service Procedure in this Tech Tip, which involves replacing the intake sensor with P/N 27700-ZC00A.
Tech Tip: Nissan Engine Will Not Crank with Outside Temperature Below 10
A no crank condition may call for replacement of the Intelligent Power Distribution Module-IPDM.
Tech Tip: Nissan MIL On with DTC U 1000 or U 1010 Stored in ECU
If you confirm the MIL is on with DTC U1000 (CAN COMM CIRCUIT) or DTC U1010 (CAN COMM) [2006 Models only] stored in the engine control unit, and there are no driveability incidents, determine if this bulletin applies by performing steps 1 and 2 of this Service Procedure.
Tech Tip: Servicing Nissan with MIL On and O2 Sensor DTCs Set
If an applicable vehicle shows the MIL on and one or more of the following DTCs are stored in the ECM, then use the Service Procedure to diagnose and
Tech Tip: Fix for a Squeaky Nissan Drive Belt
Drivers of certain Nissan vehicles may complain about noises coming from the drive belt. Correcting these noises will involve inspecting the power steering oil pump pulley alignment and possibly realigning the pump bracket (if needed), and replacing the auto-tensioner and drive belt with the ones listed below (if needed).
Nissan Tech Tip: Engine will Not Crank with Outside Temperature Below 10 Degrees
This TSB applies to Altima, Maxima, Quest, Murano, 350Z, Titan, Armada, Pathfinder, Xterra and Frontier models.
Tech Tip: Nissan MIL On/DTC P1491 Set
A 2001 Frontier (D22) or Xterra (WD22) may exhibit one or both of the following symptoms: MIL "On" with DTC P1491 (Vacuum Cut Valve Bypass Valve – VC CUT/V BYPASS/V) stored in the ECM; and/or difficulty refueling the vehicle. The vehicle’s fuel tank may need to be replaced. Use the appropriate Service Procedure provided in this bulletin to diagnose and repair these incidents, if they should occur ….
Tech Tip: Single Fix for Multiple Nissan O2 Sensor Codes
If one of the vehicles listed in this Tech Tip comes into the shop with the "Malfunction Indicator Lamp" (MIL) "ON" and one or more of the following Diagnostic Trouble Codes (DTCs) are stored in Engine Control Module (ECM), the repair may be as simple as installing an additional ground sub-harness ….
Nissan Tech Tip: Knocking Noise Above Idle
Engine "knock" may be heard on an applied vehicle just above engine idle speed (800-1,100 rpm) with the engine under a slight load. The noise cannot be detected over 1,100 rpm. The cause may be a normal pulsating noise coming from the EVAP purge solenoid valve and piping (in the engine compartment) transferring into the passenger cabin. However, use the following procedure to reduce the noise.