1A
Electric Load Signal Circuit Check
Wiring Diagram
1. Rear defogger switch 3. Blower fan switch 5. Form blower fan motor relay
2. Light switch 4. ECM      
Troubleshooting
Step Action YES NO
1
Is SUZUKI scan tool available?
Go to Step 2.
Go to Step 3.
2
Check electric load signal circuit
1) Connect SUZUKI scan tool to DLC with ignition switch OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Check electric load signal under following each condition.
Is check result satisfactory?
Electric load signal circuit is in good condition.
“RED/WHT”, “RED/YEL” and/or “BLU/ORN” circuit open or short or each electric load circuit malfunction.
3
Check electric load signal circuit
1) Turn ignition switch ON.
2) Measure voltage at each terminals “E116-14”, “E118-33” and “E118-13” of ECM connector connected, under above each condition.
Is each voltage as specified?
Electric load signal circuit is in good condition.
“RED/WHT”, “RED/YEL” and/or “BLU/ORN” circuit open or short or each electric load circuit malfunction.