FALSE PCM/TRANSAXLE COMPLAINT FLAGS 61,62-PERFORM PCM DIAG.. Saturn Saturn 1992

For 1990-2009 cars

# FALSE PCM/TRANSAXLE COMPLAINT FLAGS 61,62-PERFORM PCM DIAG.

#### SUBJECT: False PCM/TC Information Flags 61 and 62 (Check for PCM Codes, Replace PCM Only If Required)

#### MODELS AFFECTED: All 1992 Saturns with MP6/MP7 Automatic Transaxles

#### CONDITION:

---------- When diagnosing a transaxle complaint, PCM/TC Information Flags 61 and 62 may be stored in memory.

#### NOTE: Information Flags do not cause the SERVICE ENGINE SOON indicator lamp to illuminate.

#### CAUSE:

------ If Information Flags 61 and 62 are both set, they may have been caused by cycling the ignition from On to Off, and back On within three seconds. When the ignition key is turned Off the PCM/TC goes through a power down sequence that lasts approximately three seconds. If this procedure becomes interrupted, PCM/TC Flags 61 and 62 may set.

#### CORRECTIVE ACTION:

If a vehicle is brought in with the SERVICE ENGINE SOON indicator lamp illuminated, perform PCM diagnostics for the Codes obtained according to procedures in the "Electronic Engine Controls Service Manual." After performing the diagnostic procedures and repairing any problems, perform the procedures in this bulletin.

#### NOTE: If the PCM contains PCM/EC Code 82 and PCM/TC Information Flags 61 and 62, replace the PCM.

If a vehicle is brought in for a transaxle concern that does not turn on the SERVICE ENGINE SOON indicator lamp, perform PCM diagnostics. If PCM/TC Information Flags 61 and 62 are obtained perform the following procedure.

#### PROCEDURE:

---------- 1. Clear all PCM Codes. 2. Turn ignition Off for five seconds. 3. Turn ignition On. 4. Check the PCM for Codes and/or Information Flags. 5. If Information Flag 61 and/or 62 are obtained, replace the PCM. 6. If Information Flags 61 and/or 62 did not reset, the codes were set as described in the "Cause" section of this bulletin, and the customer's concerns should be corrected.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.