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P1602 Diagnostic Trouble Code Discussion for September 2004

Powertrain Control Module Not Programmed

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Trouble Ticket Help Requests for DTC P1602
Help Request Posted
2000 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR54K6Y
P1602: PCM loss of communications. Intermittant no crank: Customer states display reads driver unknown. Vehicle may start at which time Volts, Fuel, Temp, Radio, Power locks, Air Bag Light are on and or system is inoperative. Removed back seat to get a closer look at power feeds & problem w...
September 17, 2004
1999 Oldsmobile Intrigue GX 3.5L scan data VIN: 1G3WH52H5X
P1602: Loss Communications With EBTCM. ... in for a slipping tranny, we replaced with a reman. the customer came back the next day complaining of it "hunting for overdrive". I drove to verify, and did. with the scanner on the car, the data will stop, and a no communication warning will appe...
September 22, 2004