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P1626 Diagnostic Trouble Code Discussion for August 2010

Theft Deterrent System Fuel Enable Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1626
Help Request Posted
1995 Buick Park Avenue Ultra 3.8L starts and dies VIN: 1G4CU5219S
P1626: Passkey II invalid frequency. ... codes for passlock stored in ecm. Installed resistor in harness at passkey module to bypass key/tumbler. Car worked fine for a couple days, then reset codes p1626, p1629 and starts/dies intermittently. The customer doesn't care about theft deterrent, and I...
August 17, 2010
1995 Buick Park Avenue Ultra 3.8L starts and dies VIN: 1G4CU5219S
P1626: Passkey II invalid frequency. ... codes for passlock stored in ecm. Installed resistor in harness at passkey module to bypass key/tumbler. Car worked fine for a couple days, then reset codes p1626, p1629 and starts/dies intermittently. The customer doesn't care about theft deterrent, and I...
August 23, 2010
1995 Buick Park Avenue Ultra 3.8L starts and dies VIN: 1G4CU5219S
P1626: Passkey II invalid frequency. ... codes for passlock stored in ecm. Installed resistor in harness at passkey module to bypass key/tumbler. Car worked fine for a couple days, then reset codes p1626, p1629 and starts/dies intermittently. The customer doesn't care about theft deterrent, and I...
August 17, 2010
1995 Buick Park Avenue Ultra 3.8L starts and dies VIN: 1G4CU5219S
P1626: Passkey II invalid frequency. ... codes for passlock stored in ecm. Installed resistor in harness at passkey module to bypass key/tumbler. Car worked fine for a couple days, then reset codes p1626, p1629 and starts/dies intermittently. The customer doesn't care about theft deterrent, and I...
August 23, 2010