Suzuki OBD1 Codes


Suzuki vehicles 1986-95 obd1 code retrieval

To get the check engine light codes of Suzuki vehicles is fairly easy. All you need is to access the fuse panel under the dash on the driver’s side. On the lower left corner of the fuse panel, there is a fuse holder or diagnostic connector that you have to install a fuse. Once you do that and after you turn the key on, the dash panel will start flashing the codes.
Suzuki OBD1 Decoder
To clear the codes, turn the key off and remove the fuse. Then disconnect the battery negative terminal for 30 seconds and reconnect. (On some models, the duration of disconnection is up to 60 seconds, check your manual or contact ATS).
To read the codes being flashed, use this as a guide: code 13 is one long flash followed by 3 short flashes. Each code is repeated 3 times before going to the next code after a pause. When you see the codes flashing in the dash panel, write it down and reset the codes. You can do this by disconnecting the battery negative terminal for 1-2 minutes and reconnect. Start and warmed up the engine and repeat self dianostic procedure shown above. If the fault codes show up again, then that is the one you have to fix.
Here are some popular Suzuki codes for 1986-95 vehicles:
Code 12 System normal
Code 13 Oxygen sensor fault
Code 14 Engine coolant temperature circuit fault, high voltage
Code 15 Engine coolant temperature circuit fault, low voltage
Code 21 Throttle position sensor (TPS) circuit fault, voltage high
Code 22 Throttle position sensor (TPS) circuit fault, voltage low
Code 23 Air temperature sensor circuit fault, voltage high
Code 24 Vehicle speed sensor circuit fault
Code 25 Air temperature sensor circuit fault, voltage low
Code 31 Pressure sensor circuit fault, voltage high
Code 32 Pressure sensor circuit fault, voltage low
Code 33 Mass air flow sensor circuit fault, voltage high
Code 34 Mass air flow sensor circuit fault, voltage low
Code 41 Ignition signal fault
Code 42 Crank angle sensor circuit fault
Code 44 Idle switch of TPS, open circuit
Code 45 Idle switch of TPS, shorted circuit
Code 51 EGR system circuit fault
Code 52 Injector fault
Code 53 Ground circuit fault
Code 54 Fifth gear switch circuit fault
Code 71 Test switch circuit

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