No DTC Detection After Performing DTC Check: Troubleshooting

WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Combination meter power and ground circuit check Turn ignition switch to ON position. Do warning lamps in combination meter other than key indicator lamp light up?	Go to Step 2.	Check main fuse, circuit fuse, combination meter power and ground circuit.
2	Driver side door request switch and its circuit check Check driver side door request switch and its circuit referring to DTC NO. 51/NO. 52/NO. 53: DRIVER SIDE/PASSENGER SIDE/REAR END DOOR REQUEST SWITCH FAILURE . Is it in good condition?	Go to Step 3.	Repair or replace malfunction part.
3	Key reminder switch and its circuit check Turn ignition switch to OFF position. Disconnect connector from ignition switch. Check key reminder switch for operation referring to IGNITION SWITCH INSPECTION . If OK, check for open, short and high resistance in key reminder switch circuit. Is it in good condition?	Go to Step 4.	Repair or replace malfunction part.
4	Keyless start control module power supply and ground circuit Check keyless start control module power and ground circuit for condition referring to KEYLESS START CONTROL MODULE POWER AND GROUND CIRCUIT CHECK . Is it in good condition?	Go to Step 5.	Repair circuit.
5	CAN communication circuit check Turn ignition switch to OFF position. Disconnect connectors of all control modules communicating by means of CAN. Check CAN communication circuit between control modules for open, short and high resistance. Is each CAN communication circuit in good condition?	Substitute a known-good keyless start control module and recheck.	Repair circuit.