Trouble code 55 on a 1991 Plymouth Acclaim indicates that the engine control module (ECM) has completed its self-diagnostic tests and found no faults. This code is often referred to as a "completion code," signaling that the system is functioning normally. It typically appears after running the diagnostic test and is not indicative of any specific issue. If you're troubleshooting, it's a sign that there are no stored fault codes in the system at that time.
Trouble code 26 in a 1991 Plymouth Acclaim is >>> the Peak Injector circuit voltage has not been reached (need to check computer signals, voltage regulator injectors.) Note: check computer connections! For further ECU codes check out http://www.freeautomechanic.com/diagnostictroblecodes8.html (freeautomechanic.com)
No it was had an AA body code.
ECU code 12 is>>>battery or computer disconnected recently. For listing of codes go to http://www.freeautomechanic.com/diagnostictroblecodes8.html (freeautomechanic.com)
Peak injector current has not been reached (non-turbo) or a problem with an injector circuit (turbo). Check the injector(s) and electrical harnesses.
You dont have to plug in a code reader to get Diagnostic Trouble Codes (DTC's) on any Plymouth Acclaim; you turn the key to run, without starting it, 5 times, then back to run. It will then flash out a code via the Check Engine Light. I.e. flash-flash PAUSE flash flash flash..END would be code 23. Google is your friend. You can find many many many webpages dedicated to this technology ~Technologic80
Trouble code P1391 means:Intermittent loss of CMP or CKP
Trouble code 52 on a 1995 Plymouth Acclaim indicates a problem with the fuel pump relay circuit. This code typically suggests that the engine control module (ECM) has detected an issue with the fuel pump's operation, which could be due to a faulty relay, wiring issues, or a malfunctioning fuel pump itself. It's important to diagnose the specific component causing the issue to ensure proper fuel delivery to the engine. Checking the relay and associated wiring would be a good starting point for troubleshooting.
The airbag light turns on when the airbag computer detects a malfunction and sets a code.
Trouble code P0340 means:Camshaft position sensor circuit malfunction
Trouble code P0731 means: A/T Additional Gear Ratio Error In First Gear
Trouble code P0731 means: A/T Additional Gear Ratio Error In First Gear
Trouble code P1294 means: Target idle not reached