P23xx OBD2 Trouble Codes
This is the listing of P23xx OBD2 diagnostic trouble codes (DTCs). They all start with P23, e.g., P2307, P2347. The first two characters P2 indicate that they are generic powertrain related codes. The codes below are considered generic because they apply to all makes/models of OBD2 vehicles, although specific diagnosis & repair steps may vary.
P2300-P2399 Trouble Codes
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| Code(s) | Description |
|---|---|
| P2300 | Ignition Coil "A" Primary Control Circuit Low |
| P2301 | Ignition Coil "A" Primary Control Circuit High |
| P2302 | Ignition Coil "A" Secondary Circuit |
| P2303 | Ignition Coil "B" Primary Control Circuit Low |
| P2304 | Ignition Coil "B" Primary Control Circuit High |
| P2305 | Ignition Coil "B" Secondary Circuit |
| P2306 | Ignition Coil "C" Primary Control Circuit Low |
| P2307 | Ignition Coil "C" Primary Control Circuit High |
| P2308 | Ignition Coil "C" Secondary Circuit |
| P2309 | Ignition Coil "D" Primary Control Circuit Low |
| P230A, P230B, P230C, P230D, P230E, P230F | ISO/SAE Reserved |
| P2310 | Ignition Coil "D" Primary Control Circuit High |
| P2311 | Ignition Coil "D" Secondary Circuit |
| P2312 | Ignition Coil "E" Primary Control Circuit Low |
| P2313 | Ignition Coil "E" Primary Control Circuit High |
| P2314 | Ignition Coil "E" Secondary Circuit |
| P2315 | Ignition Coil "F" Primary Control Circuit Low |
| P2316 | Ignition Coil "F" Primary Control Circuit High |
| P2317 | Ignition Coil "F" Secondary Circuit |
| P2318 | Ignition Coil "G" Primary Control Circuit Low |
| P2319 | Ignition Coil "G" Primary Control Circuit High |
| P231A, P231B, P231C, P231D, P231E, P231F | ISO/SAE Reserved |
| P2320 | Ignition Coil "G" Secondary Circuit |
| P2321 | Ignition Coil "H" Primary Control Circuit Low |
| P2322 | Ignition Coil "H" Primary Control Circuit High |
| P2323 | Ignition Coil "H" Secondary Circuit |
| P2324 | Ignition Coil "I" Primary Control Circuit Low |
| P2325 | Ignition Coil "I" Primary Control Circuit High |
| P2326 | Ignition Coil "I" Secondary Circuit |
| P2327 | Ignition Coil "J" Primary Control Circuit Low |
| P2328 | Ignition Coil "J" Primary Control Circuit High |
| P2329 | Ignition Coil "J" Secondary Circuit |
| P232A, P232B, P232C, P232D, P232E, P232F | ISO/SAE Reserved |
| P2330 | Ignition Coil "K" Primary Control Circuit Low |
| P2331 | Ignition Coil "K" Primary Control Circuit High |
| P2332 | Ignition Coil "K" Secondary Circuit |
| P2333 | Ignition Coil "L" Primary Control Circuit Low |
| P2334 | Ignition Coil "L" Primary Control Circuit High |
| P2335 | Ignition Coil "L" Secondary Circuit |
| P2336 | Cylinder 1 Above Knock Threshold |
| P2337 | Cylinder 2 Above Knock Threshold |
| P2338 | Cylinder 3 Above Knock Threshold |
| P2339 | Cylinder 4 Above Knock Threshold |
| P233A, P233B, P233C, P233D, P233E, P233F | ISO/SAE Reserved |
| P2340 | Cylinder 5 Above Knock Threshold |
| P2341 | Cylinder 6 Above Knock Threshold |
| P2342 | Cylinder 7 Above Knock Threshold |
| P2343 | Cylinder 8 Above Knock Threshold |
| P2344 | Cylinder 9 Above Knock Threshold |
| P2345 | Cylinder 10 Above Knock Threshold |
| P2346 | Cylinder 11 Above Knock Threshold |
| P2347 | Cylinder 12 Above Knock Threshold |
| P2348 through P23FF | ISO/SAE Reserved |