Innova 3100 Owner's Manual page 92

DTC Definitions
GENERAL MOTORS (P1642 - P1663)
Code
P1642 AIR Control Circuit (3.4L)
P1642 Change Oil Lamp Control Circuit (1998 3.1L Lumina & Monte
Carlo)
P1643 Fuel Pump PWM Control Circuit (Except 5.7L VINs P & 5)
P1643 Engine RPM Output Circuit (5.7L VINs P & 5)
P1644 Delivered Torque Output Circuit
P1645 Boost Control Solenoid Circuit (Except 4.0L & 4.6L)
P1645 EVAP Solenoid Output Circuit (4.0L & 4.6L)
P1646 Boost Control Solenoid Control Circuit (Except 4.0L & 4.6L)
P1646 EVAP Vent Valve Output Circuit (4.0L & 4.6L)
P1650 Driver 2 Input Voltage High
P1651 Fan On Relay Control Circuit/Output Driver Module (Quad
Driver) 'B' Quickset Fault (Saturn)
P1651 Fan 1 Relay Control Circuit
P1652 Fan 2 Relay Control Circuit (Except Cadillac & Corvette)
P1652 VSS Output Circuit (1996 Corvette)
P1652 Powertrain Induced Chassis Pitch Output Circuit (1997- 98
Corvette)
P1652 Lift/Drive Output Circuit (Cadillac)
P1653 TCS Delivered Torque Control Circuit (Except Caprice,
Roadmaster & 1998 3.8L)
P1653 Oil Level Lamp Control Circuit (Caprice, Fleetwood &
Roadmaster)
P1653 Fuel Level Output Control Circuit (1998 3.8L)
P1654 A/C Relay Control Circuit (Except 4.0L & 4.6L)
P1654 Cruise Disable Output Circuit (4.0L & 4.6L)
P1655 EVAP Purge Solenoid Control Circuit
P1656 Wastegate Solenoid Control Circuit
P1657 Skip Shift 1-4 Upshift
P1660 Cooling Fan Control Circuits
P1661 MIL Control Circuit
P1662 Speed Control Inhibit Control Circuit
P1663 Alternator Lamp Control Circuit (Except Caprice, Fleetwood
& Roadmaster)
P1663 Change Oil Lamp Control Circuit (Caprice, Fleetwood &
Roadmaster)
90
Definition
OBD 2