EDI DIAGNOSIS
SERVICE MANUAL NUMBER 22
Page 5E-44
90-860074--1 FEBRUARY 2002
Microcontroller Fault
Scan Code:
P1615
Blink Code:
1311
Malfunction Indicator Lamp:
OFF
75343
CIRCUIT DESCRIPTION:
As part of self-diagnosis the ECM is capable of determining if failures have occurred to
circuits within the ECM. If defects exists the ECM sets this code.
DIAGNOSTIC HELP:
Verify the following:
•
Replace the ECM.
Recognition by the ECM of Microprocessor Fault influences engine performance as follows:
•
No loss of power.
