Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1983 Cadillac Cimarron AutomaticFACTORY OEM SERVICE PROCEDURE
Trouble Code Id Chart
ECM TROUBLE CODE IDENTIFICATION
| Code | Circuit Affected |
|---|---|
| 13 | Open Oxygen Sensor Circuit |
| 14 | Coolant sensor circuit shorted/low voltage |
| 15 | Coolant sensor circuit open/high voltage |
| 21 | Throttle position sensor circuit open/low voltage |
| 22 | Throttle position sensor circuit open/high voltage |
| 24 | Vehicle speed sensor circuit |
| 33 | MAP sensor circuit voltage high |
| 34 | MAP-vacuum sensor circuit voltage low |
| 42 | EST by-pass circuit grounded/open |
| 43 | ESC retard signal too long |
| 44 | Lean oxygen sensor indication |
| 44 & 45 | At the same time, faulty oxygen sensor |
| 45 | Rich oxygen sensor indication |
| 51 | Faulty PROM or improper PROM installation |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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