Suzuki Samurai/Sidekick/Tracker 1986-1998 Repair Guide

Reading Codes

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1.3L TFI ENGINE



See Figures 1 and 2

The CHECK ENGINE light, located in the instrument cluster, can be used to retrieve DTC's stored in the ECM. The DTC's are double-digit numbers, which are conveyed by the CHECK ENGINE light as flashes. Each digit of the code is presented as a series of flashes, so that code No. 32 would be presented as three flashes close together, then 2 flashes after a one second pause. Three seconds after the first code, the next code will be flashed in the CHECK ENGINE light. The DTC's can be retrieved as follows:

  1. Without starting the engine, turn the ignition switch ON . The CHECK ENGINE light should illuminate (not flash); if it doesn't there is a problem in the CHECK ENGINE light circuit.
  2.  
  3. Install a spare fuse into the diagnosis switch terminal, located on the end off the fuse box, under the left-hand side of the instrument panel. Installing the spare fuse will ground the diagnosis circuit.
  4.  
  5. Observe the CHECK ENGINE light and write down any codes flashed. If the only code flashed out by the CHECK ENGINE light is No. 12, no malfunctions were recorded. If the CHECK ENGINE light stay illuminated and does not flash any codes, not even No. 12, there is a problem in the CHECK ENGINE light circuit.
  6.  



Click image to see an enlarged view

Fig. Fig. 1: To retrieve the DTC's used with 1.3L TFI engines, install a spare fuse in the position marked 2-this will ground the test circuit and actuate the CHECK ENGINE light

  1. Afer all codes have been flashed and noted, repair or service the defective circuits and components.
  2.  
  3. Remove the spare fuse from the diagnosis terminal.
  4.  
  5. Clear the DTC's.
  6.  
  7. Start the engine and allow it to reach normal operating temperature.
  8.  
  9. Turn the engine OFF .
  10.  
  11. Once again install the spare fuse and ensure that code No. 12 is the only DTC flashed by the CHECK ENGINE light.
  12.  
  13. Turn the ignition switch OFF , and remove the spare fuse from the fuse panel.
  14.  



Click image to see an enlarged view

Fig. Fig. 2: When using a scan tool, be sure to follow the manufacturer's instructions carefully to ensure proper diagnosis

192-95 1.6L ENGINES



See Figures 3 and 4

The CHECK ENGINE light, located in the instrument cluster, can be used to retrieve DTC's stored in the ECM. The DTC's are double-digit numbers, which are conveyed by the CHECK ENGINE light as flashes. Each digit of the code is presented as a series of flashes, so that code No. 32 would be presented as three flashes close together, then 2 flashes after a one second pause. Three seconds after the first code, the next code will be flashed in the CHECK ENGINE light. The DTC's can be retrieved as follows:



Click image to see an enlarged view

Fig. Fig. 3: To read the DTC's, use a jumper wire to ground terminal B to terminal C, which will activate the CHECK ENGINE light-192-93 1.6L engines



Click image to see an enlarged view

Fig. Fig. 4: To read the DTC's on 1994-95 1.6L engines, use the jumper wire to connect terminals B and D

  1. Sit in the driver's seat so that you can see the CHECK ENGINE light in the instrument cluster.
  2.  
  3. Without starting the engine, turn the ignition switch ON . The CHECK ENGINE light should illuminate (not flash); if it doesn't there is a problem in the CHECK ENGINE light circuit.
  4.  
  5. Have a helper connect a jumper wire between terminals B and C (192-93 models) or terminals B and D (for 1994-95 models) of the monitor coupler, which will ground the diagnosis circuit.
  6.  
  7. Observe the CHECK ENGINE light and note all codes flashed. If the only code flashed out by the CHECK ENGINE light is No. 12, no malfunctions were recorded by the ECM. If the CHECK ENGINE light stays illuminated and does not flash any codes, not even No. 12, there is a problem with the CHECK ENGINE light circuit.
  8.  
  9. Afer all codes have been flashed and noted, repair or service the defective circuits and components.
  10.  
  11. Remove the jumper wire from the diagnosis monitor coupler.
  12.  
  13. Clear the DTC's.
  14.  
  15. Start the engine and allow it to reach normal operating temperature.
  16.  
  17. Turn the engine OFF .
  18.  
  19. Once again have your assistant install the jumper wire on the monitor coupler, and ensure that code No. 12 is the only DTC flashed by the CHECK ENGINE light.
  20.  
  21. Turn the ignition switch OFF , and remove the jumper wire from the monitor coupler.
  22.  

1996-98 1.6L & 1.8L ENGINES



If you want to retrieve DTC's or freeze frame data, do NOT disconnect the negative battery cable; this will erase all stored information from the ECM.

Since the DTC's used by the OBD-II compliant ECM, which is used with all MFI engines, are alpha-numeric (comprising both numbers and letters), the DTC's cannot be retrieved from the MIL as can those of the TFI systems. A scan tool is absolutely necessary to retrieve the DTC's.

To read the DTC's and freeze frame data, refer to the individual scan tool manufacturer's instructions.

 
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