10C
DTC Check
Immobilizer Control Module
Vehicle not equipped with air bag system
1) Using analog type voltmeter, connect positive probe to diagnostic output terminal (4) and negative probe to ground terminal (5) of immobilizer diagnostic coupler (3) with ignition switch turned ON.
2) Read deflection of voltmeter indicator which represents DTC as shown in example below and write it down. For details of DTC, refer to Immobilizer Control Module side in DTC Table:M13A Model .
If voltmeter indicator does not deflect, go to DTC is Not Output from Diagnostic Output Terminal (For Vehicle Not Equipped with Air Bag System):M13A Model .
NOTE:
If abnormality or malfunction lies in two or more areas, voltmeter indicator lamp indicates applicable codes three times each.
1. Immobilizer control module
2. DLC (Data link connector)
Vehicle equipped with air bag system
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link connector (DLC) (1) located on underside of instrument panel at driver’s seat side.
Special Tool
(A) : SUZUKI scan tool
3) Turn ignition switch ON.
4) Read DTC stored in immobilizer control module according to instructions displayed on SUZUKI scan tool and print it or write it down. Refer to SUZUKI scan tool operator’s manual for further details.
If communication between SUZUKI scan tool and immobilizer control module is not possible, go to DTC is Not Output from Immobilizer Control Module (For Vehicle Equipped with Air Bag System):M13A Model .
NOTE:
When reading DTC stored in immobilizer control module using SUZUKI scan tool, select “BCM” from the applications menu and “IMMOBILIZER” from the select system menu displayed on SUZUKI scan tool.
5) After completing the check, turn ignition switch OFF and disconnect SUZUKI scan tool from data link connector (DLC).
ECM
Not using SUZUKI scan tool (Except for vehicle equipped with immobilizer indicator lamp)
1) Using service wire (6), ground diagnostic switch terminal in monitor coupler (3).
1. ECM
2. Dash side trim
4. To diagnostic switch
5. To ground terminal
2) Read DTC from flashing pattern of malfunction indicator lamp as shown in example below and write it down. For details of DTC, refer to ECM side in DTC Table:M13A Model .
If lamp remains ON, go to Malfunction Indicator Lamp (MIL) Check:M13A without VVT .
NOTE:
If abnormality or malfunction lies in two or more areas, malfunction indicator lamp indicates applicable codes three times each.
And flashing of these codes is repeated as long as diagnosis terminal is grounded and ignition switch is held at ON position.
3) After completing the check, turn ignition switch OFF and disconnect service wire from monitor coupler.
Using SUZUKI scan tool
1) Turn ignition switch OFF.
2) After setting cartridge to SUZUKI scan tool, connect it to data link connector (DLC) (1) located on underside of instrument panel at driver’s seat side.
Special Tool
(A) : SUZUKI scan tool
3) Turn ignition switch ON.
4) Read DTC stored in ECM according to instructions displayed on SUZUKI scan tool and print it or write it down. Refer to SUZUKI scan tool operator’s manual for further details.
If communication between SUZUKI scan tool and ECM is not possible, check if SUZUKI scan tool is communicable by connecting it to ECM in another vehicle. If communication is possible in this case, SUZUKI scan tool is in good condition.
Then check data link connector and serial data line (circuit) in the vehicle with which communication was not possible.
NOTE:
• When reading DTC stored in ECM using SUZUKI scan tool, select “ECM” from the applications menu and “SUZUKI mode” from the communication mode menu displayed on SUZUKI scan tool.
• If ECM detects a trouble in both engine and emission control system and immobilizer control system, SUZUKI scan tool indicates trouble codes of both systems using SUZUKI mode of ECM application.
5) After completing the check, turn ignition switch OFF and disconnect SUZUKI scan tool from data link connector (DLC).