ECM/Crankshaft Pulley - MIL ON/DTC P0300 Set: Overview

Bulletin No.: 006/98
Issued: 05/28/98
Revised: 12/31/98

Category
F (01)

Applicable Model/s
1997 MX-5

Subject
MIL ILLUMINATION WITH DTC P0300

BULLETIN NOTE
^ This bulletin supersedes F 006/98 dated 005/28/98. The APPLICABLE MODEL(S)/VINS has been revised.

APPLICABLE MODEL(S)/VINS
All 1997 MX-5 with VINs lower than JM1 NA35**V0 727842 (Condition A).
All 1997 MX-5 (Condition B).

DESCRIPTION

MIL (Malfunction Indicator Light) illuminates and DTC (Diagnostic Trouble Code) P0300 is stored in the PCM (Powertrain Control Module). This condition is caused by either of the following two conditions.

Condition A

^ While driving at an engine speed of approx. 6,OO0 RPM, the above problem is caused by mis-logic of the ECM (PCM).

Condition B

^ While driving at an engine speed of approx. 4,800 RPM, the above problem occurs when the gap between the crankshaft pulley and the crankshaft position sensor are out of specification.

Customers complaining of this subject should have their vehicle inspected, and if necessary, repaired according to this bulletin.

PART(S) INFORMATION

Part Number Description Qty.

BP 3A 18 881R 0B Engine Control Module (Rebuilt) 1
BPS1 18 221 Crankshaft Position Sensor 1
B6BF 11 408B Crankshaft Pulley Plate 1

Interchangeability Note:
^ "A" means an old part can be replaced with a new part, however, a new part cannot be replaced with an old part.





WARRANTY INFORMATION

Note
^ This information applies to verified customer complaints on vehicles covered under normal warranty. Refer to the SRT microfiche for warranty term information.