Computer Test
Raise vehicle and support on chassis stands. Remove glove box or console. DO NOT disconnect computer connector. Start engine. Using a voltmeter, check that there is no voltage between computer terminals SOL (+) and SOL (-) with engine idling. See Fig 1. Place transmission in gear and raise vehicle speed to test specification. See COMPUTER VOLTAGE SPECIFICATIONS . If voltage is not to specification, replace computer.
COMPUTER VOLTAGE SPECIFICATIONS
| Application | Vehicle Speed MPH (km/h) | Voltage | |
|---|---|---|---|
| Cressida | |||
| SOL (-)-to-Ground | 37 (60) | .12-.23 | |
| Supra, Pickup & 4Runner | |||
| SOL (-)-to-Ground | 31 (50) | .12-.24 | |