Pathfinder SE 4WD V6-3.5L (VQ35) (2002)
Secondary Suppression Resistor: All Technical Service Bulletins
Radio - Rhythmic RPM Sensitive Static Noise
Classification:
EL02-007
Reference:
NTB02-040
Date:
April 12, 2002
2002 PATHFINDER STATIC RADIO NOISE CAUSED BY IGNITION COILS
APPLIED VEHICLES:
2002 Pathfinder (R50)
APPLIED VIN:
Vehicles built before:
JN8DR09X*2W655078
JN8DR09Y*2W713864
APPLIED DATE:
Vehicles built before: October 22, 2001
SERVICE INFORMATION
If the radio of an Applied Vehicle exhibits the following symptom:
^
A steady, rhythmic static noise heard from the speakers that "follows" engine speed on certain FM radio stations,
The cause may be the ignition coil resistors. A new resistor assembly (located inside the ignition coil tube) is available to repair the described symptom,
if it should occur.
SERVICE PROCEDURE
1.
Start the engine and allow it to idle.
2.
Turn radio on and search for several FM stations until a steady "ticking" or "popping" noise is heard through the speakers.
Notes:
^
Weaker radio stations may make the static noise easier to detect, if it exists.
^
Increasing the treble and decreasing the bass settings may also make the "ticking" noise easier to detect, if it exists.
3.
If the incident is duplicated, accelerate the engine and note if the frequency of the "ticking" or "popping" noise increases with engine speed.
4.
If the noise does not "follow" the engine speed, the incident is not caused by the ignition coils. Consult the appropriate section of the Electronic
Service Manual (ESM) to diagnose and repair the incident.
5.
If the noise "follows" the engine speed, remove all ignition coils from the engine using the following procedure: