1-1. | Immobilizer Control Module (Vehicle not equipped with air bag system) |
1-2. | Immobilizer Control Module (Vehicle equipped with air bag system) |
2. | ECM |
A. | To data link connector (DLC) |
Step | Action | YES | NO |
---|---|---|---|
1 |
1)
Check voltage between Immobilizer Control Module coupler terminal shown below and body ground with ignition switch turned ON.
•
Terminal of Immobilizer Control Module (1-1) for vehicle without air bag system: “G38-7”
• Terminal of Immobilizer Control Module (1-2) for vehicle with air bag system: “G38-2”
Is it 4 – 5 V?
|
Go to Step 2.
|
“YEL/BLK” wire short.
|
2 |
1)
Disconnect ECM coupler with ignition switch turned OFF.
•
Terminal of Immobilizer Control Module (1-1) for vehicle without air bag system: “G38-7”
• Terminal of Immobilizer Control Module (1-2) for vehicle with air bag system: “G38-2”
Is there continuity between Immobilizer Control Module coupler terminal shown below and serial data link terminal E114-2 (E118-10) of ECM coupler (A)? (For position of Data link connection terminal of ECM coupler, refer to
Immobilizer Control System Introduction:M13A Model
.)
|
<Vehicle without air bag system>
Poor “G38-7” terminal connection or poor data link connector terminal connection (ECM)
<Vehicle with air bag system>
Poor “G38-2” terminal connection or poor data link connector terminal connection (ECM)
If connection are OK, substitute a known-good ECM or Immobilizer Control Module and recheck. See NOTE.
|
“YEL/BLK” wire between Immobilizer Control Module and ECM open.
|