For 1990-2009 cars

Figure 1: |

#### Transmission Control Module (M74)

(1) | Transmission Control Module Connectors
(2) | Transmission Control Module
(3) | Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel)

Figure 2: |

#### Engine Harness to Transmission-Allison

(1) | Turbine Sensor Harness Connector
(2) | Power Take-Off (PTO) Connector
(3) | Output Speed Sensor Harness Connector
(4) | Transfer Case Selector Shift Control Switch
(5) | Transmission Connector Harness
(6) | Park/Neutral Position (PNP) Switch Connectors
(7) | Allison Transmission
(8) | Engine Harness
(9) | Automatic Transmission Input Shaft Speed (ISS) Sensor