89–95 SIDEKICK & SAMURAI w/THROTTLE BODY INJECTION (TBI)

12 All Clear (No Fault Detected)

13 O2 Sensor circuit

14 Coolant Temperature Sensor Circuit

15 Coolant Temperature Sensor Circuit

21 Throttle Position Sensor Circuit

22 Throttle Position Sensor Circuit

23 Intake Air Temperature Sensor Circuit

24 Vehicle Speed Sensor Circuit

25 Intake Air Temperature Sensor Circuit

31 Atmospheric Pressure Sensor Circuit

32 Atmospheric Pressure Sensor Circuit

41 Ignition Signal Circuit

42 Crank Angle Sensor Circuit

44 Idle Switch Sensor Circuit

45 Idle Switch Sensor Circuit

51 EGR System & Recirculated Exhaust Gas Temperature Sensor

53 Ground Circuit

54 Fifth Gear Switch Circuit

71 Test Switch Circuit

ON ECM failure


92–95 SIDEKICK w/MULTI-POINT FUEL INJECTION (MPFI)

13 HO2S Circuit

14 ECT Sensor Circuit

15 ECT Sensor Circuit

21 TP Sensor Circuit

22 TP Sensor Circuit

23 IAT Sensor Circuit

24 VSS Circuit

25 Intake Air Sensor Circuit

33 Air Flow Sensor Circuit

34 Air Flow Sensor Circuit

41 Ignition Signal Circuit

42 CMP Sensor Circuit

44 Idle Switch Circuit

45 Idle Switch Circuit

51 EGR System & REGT Sensor Circuit

52 Fuel Injector

FULL List look at HERE Suzuki Fault Codes - car manuals & wiring diagrams