5-SPD M/T Control Relay Identification/Testing (21-14-85)
Reference number: 21-14-85
5-SPD M/T CONTROL RELAY IDENTIFICATION/TESTING
TECHNICAL SERVICE BULLETIN
CONTROL RELAY IDENTIFICATION & TESTING
Model(s): 1984-1985 Colt/Colt Vista Models Equipped with 5-Speed Transmission
Group: Manual Transmission
Bulletin No.: 21-14-85
Date: June 3, 1985
SERVICE INFORMATION
The subject models are available with a 5-speed manual transaxle which has an electronically controlled fifth gear. The select control valve, which controls the select actuator, is controlled by one of three different types of control relays. Refer to Chart 1 for the specific control relay application.
Each of the control relays has a different detection system. The conditions under which each relay starts to activate the select control valve are listed below.
- A Type * Ignition switch is put into ON position. * Select switch is energized "On" when transmission control lever is shifted into fifth gear, and "Off" in any other lever position.
- B Type * Engine is running to generate a voltage at "L" terminal of alternator. * Select switch is energized "On" when transmission control lever is shifted into fifth gear, and "Off" in any other lever position.
- C Type * Vehicle is moving at a speed faster than 6 mph (10 Km/HR). * Select switch is energized "On" when transmission control lever is shifted into fifth gear, and "Off" in any other lever position.
A schematic of the relationship of the control relay, select control valve and select actuator is shown in Fig 1 .
| MODEL | A Type | B Type | C Type |
|---|---|---|---|
| 1984 Colt | N/A Models | --- | Turbo Models |
| 1985 Colt | N/A Models | N/A Models | Turbo Models |
| 1984 Colt Vista | --- | --- | All Models |
| 1985 Colt Vista | --- | --- | All Models |
N/A - Natural Aspiration
(1 ) - Built before February, 1985
(2 ) - Built In and After February, 1985