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Connector Identification

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NOTE: Harness connectors shown do not apply to every vehicle. Some connectors are model specific, depending upon equipment application. For connector identification, refer to appropriate illustrations. See Fig 1-Fig 15 .
Fig 1: Identifying PCM 80-Pin Harness Connector (C1 & C2) Terminals (2.2L & 4.3L - Except "C" & "K" Series)
G98G01903Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying PCM 80-Pin Harness Connector (C1 & C2) Terminals (3.8L, 4.3L "C" & "K" Series, 4.8L, 5.0L, 5.3L, 5.7L & 6.0L)
G98I01904Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying PCM 64-Pin Harness Connector (C1 & C2) Terminals (4.2L)
G00101367Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying PNP Switch & Backup Light Switch Harness Connector (C1) Terminals
G00023565Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying Pressure Control Solenoid Valve Harness Connector Terminals
G00023557Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying TCC Solenoid Valve Harness Connector Terminals
G00023558Courtesy of GENERAL MOTORS CORP.
Fig 7: Identifying TFP Manual Valve Position Switch Harness Connector Terminals
G00023554Courtesy of GENERAL MOTORS CORP.
Fig 8: Identifying Tow/Haul Switch Harness Connector Terminals ("S" & "T" Series - Except Envoy)
G00023559Courtesy of GENERAL MOTORS CORP.
Fig 9: Identifying Tow/Haul Switch Harness Connector Terminals (Envoy, & "C", "K", "L" & "M" Series)
G00023560Courtesy of GENERAL MOTORS CORP.
Fig 10: Identifying TR Switch Harness Connector Terminals
G00023562Courtesy of GENERAL MOTORS CORP.
Fig 11: Identifying Transmission 20-Pin In-Line Harness Connector Terminals (Engine Side)
G00023552Courtesy of GENERAL MOTORS CORP.
Fig 12: Identifying Transmission 20-Pin In-Line Harness Connector Terminals (Transmission Side)
G00023553Courtesy of GENERAL MOTORS CORP.
Fig 13: Identifying VSS Harness Connector Terminals
G00023561Courtesy of GENERAL MOTORS CORP.
Fig 14: Identifying 1-2 & 2-3 Shift Solenoid Valve, & TCC PWM Solenoid Valve Harness Connector Terminals
G00023555Courtesy of GENERAL MOTORS CORP.
Fig 15: Identifying 3-2 Shift Solenoid Valve Harness Connector Terminals
G00023556Courtesy of GENERAL MOTORS CORP.
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