10C
DTC 16: Communication Line Between Immobilizer Control Module and Coil Antenna Shorted to Ground Circuit or Open
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
• Shorted to ground circuit or open in communication line between Immobilizer Control Module and coil antenna.
• Related fuse(s) blown.
• Power circuit for coil antenna faulty.
• Ground circuit for coil antenna faulty.
• Poor connection at Immobilizer Control Module connector.
• Poor connection at coil antenna connector.
• Coil antenna faulty.
• Immobilizer Control Module faulty.
• Communication line between Immobilizer Control Module and coil antenna
• Related fuse(s)
• Power circuit for coil antenna
• Ground circuit for coil antenna
• Connection at Immobilizer Control Module connector
• Connection at coil antenna connector
• Coil antenna
• Immobilizer Control Module
DTC Troubleshooting
Step Action YES NO
1
Fuse check
1) Check if any related fuse is blown.
Is any fuse blown?
Replace blown fuse(s) with new one(s).
Go to Step 2.
2
Check for poor connection of communication line between Immobilizer Control Module and coil antenna
1) Disconnect Immobilizer Control Module connector referring to Immobilizer Control Module Removal and Installation:K9K Model .
2) Disconnect coil antenna connector referring to Coil Antenna Removal and Installation:K9K Model .
3) Check if wire connection are normal at “G46-11” wire terminal at Immobilizer Control Module connector and “G47-2” wire terminal at coil antenna connector.
Is each wire connection normal?
Go to Step 3.
Repair poor connection(s).
3
Check for short to ground circuit in communication line between Immobilizer Control Module and coil antenna
1) Check resistance between “G46-11” wire terminal at Immobilizer Control Module connector and body ground.
Is resistance more than 1 MΩ?
Go to Step 4.
Repair short to ground circuit in communication line between Immobilizer Control Module and coil antenna.
4
Check for open in communication line between Immobilizer Control Module and coil antenna
1) Check resistance between “G46-11” wire terminal at Immobilizer Control Module connector and “G47-2” wire terminal at coil antenna connector.
Is resistance in finite?
Repair open in communication line between Immobilizer Control Module and coil antenna.
Go to Step 5.
5
Check for power circuit for coil antenna
1) Connect connector to coil antenna.
2) With ignition switch at ON position, check voltage between “G47-4” wire terminal at coil antenna connector and body ground.
Is it about 12 V?
Go to Step 6.
Repair open in power circuit.
6
Check for ground circuit for coil antenna
1) With ignition switch at ON position, check voltage between “G47-1” terminal at wire terminal at coil antenna connector and body ground.
Is it 0 V?
Go to Step 7.
Repair open in ground circuit.
7
Coil antenna check
1) Remove coil antenna referring to Coil Antenna Removal and Installation:K9K Model .
2) Inspect coil antenna referring to Coil Antenna Inspection:K9K Model .
Is it normal?
Replace Immobilizer Control Module with new one referring to Immobilizer Control Module Removal and Installation:K9K Model . And then, perform key registration referring to “Procedure after Immobilizer Control Module Replacement” in Registration Procedure of Immobilizer Control System Components:K9K Model .
Replace coil antenna with new one.