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ECM Fault Codes

See ECMQuickGuide for instructions on retrieving these codes from the ECM.

Code Causes Engine Symptoms
0 No power to engine control module (ECM)
Faulty bank angle sensor or wiring
Faulty engine stop relay or wiring
Faulty engine stop switch or wiring
Faulty ignition switch
Faulty ECM
Blown PGM-FI fuse (See FuseBlock)
Open circuit in engine stop switch ground
Blown starter/ignition fuse (See FuseBlock)
No start
0 Malfunction indicator light (MIL a.k.a. FI light) wiring
Faulty ECM
Runs normally
0 Short in service check connector
Faulty ECM
Runs normally, MIL stays lit
1 Manifold absolute pressure (MAP) sensor or wiring Runs normally
2 Manifold absolute pressure (MAP) sensor or vacuum hose Runs normally
7 Engine coolant temperature (ECT) sensor or wiring Hard start when cold
8 Throttle position (TP) sensor Poor response on quick throttle operation
9 Inside air temperature (IAT) sensor or wiring Runs normally
11 Vehicle speed senor (VSS) or wiring Runs normally
12 Injector #1, wiring or mouse damage* No start
13 Injector #2, wiring or mouse damage* No start
14 Injector #3, wiring or mouse damage* No start
15 Injector #4, wiring or mouse damage* No start
18 Cam pulse generator or wiring No start
19 Ignition pulse generator or wiring No start
21 Oxygen sensor on 1/3 (left) side Runs normally
22 Oxygen sensor on 2/4 (right) side Runs normally
23 Oxygen sensor heater on 1/3 (left) side Runs normally
24 Oxygen sensor heater on 2/4 (right) side Runs normally
25 Left knock sensor or wiring Runs normally
26 Right knock sensor or wiring Runs normally
33 Faulty EEPROM in ECM Runs normally, loses diagnostic data

*If you're in denial over mouse damage, remove the air box and check. The ST has no history of injector failures and a long history of the wiring being eaten by mice nesting in the top of the engine.

-- MarkFeit - 26 Sep 2015
Topic revision: r1 - 26 Sep 2015, MarkFeit
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