TROUBLESHOOTING
92
TROUBLESHOOTING OF
ELECTRONIC CONTROL
SYSTEM
WARNING
• Never use the E-ECU for other purposes than
intended or in other ways than specified by
Isuzu. Doing so could result in the violation of
emission control regulations and will void the
product warranty.
• Replacing the fuel injection pump involves
rewriting the fuel injection data in the E-ECU.
Be sure to contact your Isuzu Distributor
before replacing the fuel injection pump.
Failure to rewrite the fuel injection data before
replacing the fuel injection pump will void the
engine warranty.
• Replacing the E-ECU involves migrating the
fuel injection data to the existing E-ECU to the
new unit.
Be sure to contact your Isuzu Distributor
before replacing the E-ECU.
Failure to migrate the fuel injection data
before replacing the E-ECU will void the
engine warranty.
• Improper use or misuse of the E-ECU may
result in death or serious injury due to an
abrupt and unexpected increase in engine
speed.
Fault Detection Capability
The E-ECU has a fault detection capability. See List
of Possible Faults of Electronically Controlled
Engines on page 95.
A fault indicator (Optional) is located on the
operator’s console as shown in Figure 1.
This indicator comes on at power up of the E-ECU
and goes out after 2 sec.
Once a fault is detected, then the indicator flashes
in certain patterns, providing fault information to the
operator.
NOTICE
Shut down the engine if the fault indicator comes
on. Continuing running the engine with the fault
indicator being on may result in a serious
malfunction of or damage to the engine, and will
void the engine warranty.
1 – Fault indicator
Figure 1
Figure 1 Typical Operator’s Console
3CE1
1
TNV_OperationManual_T4(under 19kW).book Page 92 Wednesday, June 17, 2015 11:23 AM
