Specifications

191
GENERAL OPERATION
16
IMMU
ECM
CHAIN OF ECM-IMMU
DIFFERENCE OF KEY
CHAIN OF IMMU KEY
ID DISCORD, IMM-ECM
ELECTRONIC NOISE
DON’T ERASE BEFORE
CHECKING ENG DIAG
LOCK MODE
ECM INT CIRC-IMMU
ECM received a signal from IMMU, indicating that
IMMU is malfunctioning.
Control unit is faulty
Communication between ECM and IMMU
IMMU can receive the Key ID signal but ID verifica-
tion between Key ID and IMMU is incorrect.
IMMU cannot receive key ID & Dongle unit is mal-
functioning (IF FITTED)
The result of ID verification between IMMU and
ECM is no good. System programming is required.
Electronic interference in NATS communication
lines during communication.
Engine trouble code from Engine diagnostics de-
tected.
When the starting operation is carried out 5 or
more times consecutively, if an unregistered key is
used or ECM or IMMU is faulty then the NATS sys-
tem shifts to mode 1 to stop engine from starting.
The malfunction of ECM internal circuit of IMMU
communication line is detected.