This is how you go about diagnostics: put it in park, quickly turn the ignition on/off three times, leave it on and press the yellow button
Error/Description
22 Throttle position sensor
22 The signal from the throttle position sensor is outside the permissible range.
Electrics
25 Transmission position sensor
31 System voltage low
31 System voltage high
36 Ignition Coil Circuit Malfunction A Open Circuit/Short to Ground:
36 Ignition Coil Circuit Fault Wire/Turn Short: 37 Ignition Coil B Circuit Fault Open Circuit/Short to Ground:
37 Ignition coil circuit fault B Wire-to-turn/turn-to-wire short:
41 Low voltage air temperature sensor signal
41 Air temperature sensor signal high voltage
42 Engine temperature sensor signal voltage low
42 Engine temperature sensor signal high voltage
44 Crankshaft position sensor circuit malfunction
45 Low voltage from air pressure sensor
46 High voltage from air pressure sensor
47 Regulator xx: Circuit opening:
47 Regulator xx: Short to ground:
51 Injector No. 1 Circuit Malfunction Open Circuit/Short to Ground:
51 Malfunction of injector circuit No. 1 Inter-wire/turn-to-turn short circuit:
52 No. 2 Injector Circuit Malfunction Open Circuit/Short to Ground:
52 Malfunction of injector circuit No. 2 Inter-wire/turn-to-turn short circuit:
54 engine temperature sensor error, open circuit, short to ground, short to positive. In general, you need to look at the wiring and the plug itself that goes on the sensor, I had a problem with it
55 Check Engine Light Circuit Open/Short to Ground
55 Check Engine Indicator Circuit Inter-wire/turn-to-turn short circuit:
56 Fuel Pump Open Circuit/Short to Ground
56 Fuel pump Inter-wire/turn-to-turn short circuit:
58 Fan Circuit: Open Circuit/Short to Ground:
58 Fan circuit: Inter-wire/turn-to-turn short circuit
63 Starter Signal Circuit: Open/Short to Ground
63 Starter Signal Circuit: Wire/Turn Short
72 Transmission position sensor
73 4X4 Open circuit/Short to ground
73 4X4 Inter-wire/turn-to-turn short circuit:
74 Rear Differential Signal Circuit: Open/Short to Ground (if equipped)
74 Rear Differential Signal Circuit: Wire/Turn Short