Cycle the ignition key on-off-on-off-on within five seconds, don't crank engine, only to get dash lights to respond.
Count the number of times the check engine lamp flashes, pause, and flashes again. First set of flashes is first digit, second digit comes after the pause.
Codes and description of trouble are as follows:
11- Timing belt skipped 1 tooth or more from initial learned value; Intermittent loss of either camshaft or crankshaft position sensor. No crank reference signal detected during engine cranking
12- Direct battery input to PCM was disconnected within the last 50 key-on cycles
13- No change in manifold absolute pressure (MAP) from start to run
14- Manifold absolute pressure (MAP) sensor voltage out of range
15- No vehicle speed sensor signal
17- Closed loop temp not reached or engine cold too long
21- 02 sensor problem (oxygen sensor), upstream or downstream
22- Engine coolant temp sensor out of range
23- Intake air temp sensor out of range
24- Throttle position sensor (TPS) out of range, or disagrees with MAP
25- Idle air control motor circuits problem, target idle not reached(+/- 200), vacuum leak found
27- Injector control circuit problem
31- Evaporator purge flow monitor failure or evaporator solenoid circuit problem
32- Exhaust gas recirculating (EGR) system failure or solenoid circuit problem
33- A/C clutch relay circuit problem
34- Speed control solenoid circuits problem
35- Radiator fan control relay circuit problem
37- Torque converter clutch solenoid circuit or park/neutral switch failure
41- Generator field not switching properly
42- Fuel pump relay control circuit problem Auto shutdown (ASD) relay control circuit problem No ASD relay output voltage at PCM Fuel level sending unit - volts out of range Fuel level sending unit - no change over miles
43- Multiple/ single cylinder misfire
44- Battery temp sensor volts out of range
46- Charging system voltage too high
47- Charging system voltage too low
51- Fuel system lean
52- Fuel system rich
53- Internal controller failure
54- No cam signal at PCM
55- End of error messages (If you get this only, no errors were found)
62- PCM failure - SRI mile not stored
63- PCM failure - EEPROM write denied
64- Catalytic converter efficiency failure
65- Power steering switch failure
This works great if you dont have the funds to have a scan tool read your codes.
Now if you do happen to have a scan tool or was told what your code was then you might want to check out the folowing links.
If you happen to have a newer neon with a digital odometer you can view the codes by turning the key to accessory and back without starting the car, three (3) times, On the Fourth (4) cycle leave it on the Accessory position. It should start displaying the codes where your mileage is usually displayed.
The folowing links will point you in the right derections to help correct what issues you might have.
