For 1990-2009 cars

#### L61 Powertrain Control Module (PCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Ignition ON/Engine OFF
GEN F-Terminal Signal | Engine Data 2 | % | 0%
GEN L-Terminal Signal Command | Engine Data 2 | On/Off | Off
Ignition 1 Signal | Engine Data 1,2 | Volts | 12.6 V
TR Sw. | Engine Data 2 | Park, Reverse, Neutral, Drive 4, Drive 3, Drive 2, Drive 1 | Park

#### LA1 Powertrain Control Module (PCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Ignition ON/Engine OFF
GEN F-Terminal Signal | Engine Data 2 | % | 0%
GEN L-Terminal Signal Command | Engine Data 2 | On/Off | Off
Ignition 1 Signal | Engine Data 1,2 | Volts | 12.6 V

#### LA1 Transmission Control Module (TCM)

Scan Tool Parameter | Data List | Units Displayed | Typical Data Value
--- | --- | --- | ---
Ignition ON/Engine OFF
TR Sw. | Engine Data 2 | Park, Reverse, Neutral, Drive 4, Drive 3, Drive 2, Drive 1 | Park