Isuzu N 2008 Series Workshop Manual page 56

Step
Replace the SRS control unit. Refer to SRS Control
Unit in Section 8B Supplemental Restraint System
19
(SRS).
Did you complete the replacement?
Important: Replacement
programmed.
Replace the ICU. Refer to Immobilizer Control Unit
20
& Programming in Section 9I Security and Lock.
Did you complete the replacement?
Attempt to establish communication with the ECM,
TCM, HSA control unit, SRS control unit and ICU.
21
Does the scan tool communicate with the ECM,
TCM, HSA control unit, SRS control unit and ICU?
Action
ICU must
Engine Control System (4JJ1)
Value(s)
—
be
—
—
Yes
Go to Step 21
Go to Step 21
System OK Go to Step 2
1A-53
No
—
—