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Diagnostic Trouble Codes

Published on January 23, 2011 by Bay13

Diagnostic Trouble Codes

DTC's A1 Transmission 1993-1995 Volvos


CEL Check engine light MIL DTCs

 


To start, the Ignition key must be in position II, engine not running. Locate the two diagnostic sockets just inboard of the washer fill cap. The "A" connector (shown above) has a jumper that is stored in the lid of the "A" diagnostic connector. The jumper is used for both diagnostic connectors.  Put the jumper into A1 and push the black button for one second. Count the red LED light as it blinks back information, blink, blink, pause, blink, blink, blink, pause, blink, blink, is an example of the response you would receive. 2-3-2 would be the code retrieved, now push the button again for one second, again count the blinks, keep checking for codes until one of them repeats, this means you have read all the codes. Now to clear the codes, push and hold the button for 6-7 seconds, release and as soon as the LED comes on push and hold the button for another 6-7 seconds. Now push the button for one second and read the codes again, you should get 1-1-1 (no faults). You Must Read All Codes before Clearing. Turn the ignition off and then start the car, the check engine light should be out. It is always a good idea to check for codes, clear them and then drive the vehicle to see if they return, CEL or MIL, before replacing parts.

If you still need more help with this, there is a short video up here: Volvo Pre-OBDII Code Reading

A1 Transmission Codes

CEL/DTC Transmission codes
111Nostoredfaultcodes 112ShortcircuitsolenoidS1 113TCMfault 212SolenoidS2shorttobattery 213OffscalehighTPS 221S2solenoidshorttogroundorTCM faulty 222S2solenoid open 223Offscale low TPS 314Sportmodeok 324Wintermodsok 334Brakeindicatorlightok 341Kick-downok 231SporadicTPS 232Missing speedometer signal 233Speedometersignalincorrect 235Oiltemptoohigh 245Open/shortintorquelimitingsignal 311MissingRPMsignal 241GearselectorNok 242GearselectorPok 243PNPunknownsignal 244Econmodeok 323 Slipping lockup TCM fault 411SolenoidSTH312FaultyRPMsignal 313FaultysignalfromPNP 321Shifttimetoolong 322Wronggearvalue 224Gearselector3ok 234GearselectorLok 412LampIndicator 414Drive-compensation 422TC2 423TC1 431MILMalfunctioningindicatorlamp 432TCT144GearselectorRok 214GearselectorDok 424Speed 434TransmissionRPM 444Throttleposition 344SolenoidSL114Open/shortcircuittosupplyforprogramselector 121ShorttogroundS1ormodulefault 122SolenoidS1open 123SolenoidSTHbatteryshort 124Faultymodeselector/shortedatground 313Speedx10 342 Solenoid S1 343SolenoidS2 142Oiltempsensorshort/open 135Shiftingspeed rottlesignalreset 135Shiftingspeedreset 331ShorttobatteryinSLsolenoid 332SL solenoid openorCMfault 333Short/opentoSLsolenoidorCMfault 143Faultykick-downswitch open/shortto ground 311Transmissionratebasic 312Speedx2 131SolenoidSTHopen/shorttoground 132TCMfault 134ICMfaultyloadsignal 125Th115Oiltemp 125Throttlesignal

 

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