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B1021 Diagnostic Trouble Code Discussion for January 2010

Loss of PCM serial data


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Trouble Ticket Help Requests for DTC B1021
Help Request Posted
1996 Pontiac Grand Am SE 2.4L Stall VIN: 1G2NE12T2T
B1021: loss of serial data to ipc. ... brought in for a complaint of intermitant engine stall at what is described as a totaly random occurance, hot, cold, idle and cruise. The customer stated that when it happens the security light flashes and will normally restart within a couple mins. and ma...
January 09, 2010
1996 Pontiac Grand Am SE 2.4L Stall VIN: 1G2NE12T2T
B1021: loss of serial data to ipc. ... brought in for a complaint of intermitant engine stall at what is described as a totaly random occurance, hot, cold, idle and cruise. The customer stated that when it happens the security light flashes and will normally restart within a couple mins. and ma...
January 11, 2010
1996 Pontiac Grand Am SE 2.4L Stall VIN: 1G2NE12T2T
B1021: loss of serial data to ipc. ... brought in for a complaint of intermitant engine stall at what is described as a totaly random occurance, hot, cold, idle and cruise. The customer stated that when it happens the security light flashes and will normally restart within a couple mins. and ma...
January 09, 2010
1996 Pontiac Grand Am SE 2.4L Stall VIN: 1G2NE12T2T
B1021: loss of serial data to ipc. ... brought in for a complaint of intermitant engine stall at what is described as a totaly random occurance, hot, cold, idle and cruise. The customer stated that when it happens the security light flashes and will normally restart within a couple mins. and ma...
January 11, 2010