Ignition Coil - MIL ON/Spark Knock/DTC P1320 Set

Classification:
EC01-023

Reference:
NTB01-059

Date:
September 6, 2001

2000-01 MAXIMA; MIL "ON" WITH DTC P1320 AND/OR SPARK
KNOCK (DETONATION) DUE TO IGNITION COIL(S)

APPLIED VEHICLE:
2000-01 Maxima (A33)

APPLIED VINS:
Vehicles built before:
JN1CA31A31T112164 (w/side air bags)
JN1CA31A31T316031 (w/side air bags)
JN1CA31D911627134 (w/o side air bags)
JN1CA31D91T830089 (w/o side air bags)

APPLIED DATE:
Vehicles built before: March 16, 2001

APPLIED ENGINE # :
Engines built before: VQ30-463753

SERVICE INFORMATION

If an applied vehicle exhibits one or both of the below symptoms:

^ MIL "ON" with DIC P1320 stored in the ECM Intermittent spark knock (detonation)

The cause may be one or more of the ignition coils. Refer to the Service Procedure below to resolve the incident, if it should occur.

SERVICE PROCEDURE

Determine if one or both of the symptoms listed above exists and perform the appropriate procedure(s) listed below.

Procedure for MIL "ON" with DTC P1320 Symptom

1. Check Self Diagnosis Results (using CONSULT-II) to confirm DIC P1320 (Ignition Signal Primary) is stored in the ECM.

NOTE:
Single or multiple cylinder misfire codes (P0300 - P0306) may be stored in the ECM with DIC P1320.

2. Check the ECCS wiring harness for a broken or damaged wire.

A. If the ECCS harness has a broken or damaged wire that is causing the symptom(s) noted above, repair the harness and verify the incident is resolved.

B. If the ECCS harness does not have a broken or damaged wire and is NOT causing the symptom(s) listed above, proceed with step 3 below.

3. Replace ignition coil(s) with the one(s) listed in the Parts Information table, and verify the incident is resolved.

Procedure for Spark Knock (detonation) Symptom

1. Use CONSULT-II to check Self Diagnosis Results for any stored DTCs in the ECM.

A. If there is a DTC(s) stored in the ECM, refer to the applicable Service Manual to repair the vehicle.

B. If no DIC(s) is found, proceed with step 2 below.

2. Verify the type of gasoline used in the vehicle.

A. If unleaded regular (non-premium) gasoline is used, advise the customer to use unleaded premium gasoline to eliminate the spark knock (detonation).

B. If unleaded premium gasoline is used and no other source for the symptom is found, proceed with step 3 below.

3. Replace ignition coil(s) with the one(s) listed in the Parts Information table, and verify the incident is resolved.





PARTS INFORMATION

CLAIMS INFORMATION





If only the ECCS wiring harness is repaired, submit a Primary Failed Part (PP) line claim using the claims coding shown.