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P1640 Diagnostic Trouble Code Discussion for September 2006

Output Driver 1 Voltage High Input

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Trouble Ticket Help Requests for DTC P1640
Help Request Posted
1999 Isuzu Rodeo LS 3.2L Poor Idle Quality, Cuts out, MIL Lamp on VIN: 4SZCK58W5X
P1640: Output Driver Module 'A' Circuit Malfunction. can someone please help? i cannot find diagram showing which circuits are controlled by quad "A". vehicle has eratic idle and stall. tsb's show a powerlink diag but i dont have access to powerlink. i would much appreciate it if someone could tell me wh...
September 21, 2006
1995 Pontiac Bonneville SSE 3.8L MIL Lamp on VIN: 1G2HZ5215S
P1640: quad drive 1 circuit. ... driveability tech has retired and driveability is not my new tech's strong point. This car came in /w intermittent MIL on. Sometimes comes on immediately, sometimes comes on after 15-20 minutes of driving. Has code p1640 stored. Diagnostic charts say to c...
September 25, 2006