Resistance Checks
Resistances are measured at the instrument cluster harness connector with harness connector disconnected. All resistance checks should be made to ground (pin No. 153) unless otherwise stated, and with engine off.
CORVETTE INSTRUMENT PANEL RESISTANCE CHECKS
| Application (Signal) | Specification | |||
|---|---|---|---|---|
| Oil Pressure | ||||
| Pin No. | 31 | |||
| Resistance (Ohms) | 0-3 | |||
| Comments | Engine off | |||
| Oil Pressure | ||||
| Pin No. | 31 | |||
| Resistance (Ohms) | 3-90 (1) | |||
| Comments | Engine running | |||
| Fuel Tank | ||||
| Pin No. | 30 | |||
| Resistance (Ohms) | 0-90 | |||
| Comments | Depends on fuel in tank | |||
| Cruise Signal Position | ||||
| Pin No. | 398 | |||
| Resistance (Ohms) | 22 | |||
| Comments | Measure between 398 and 84 | |||
| Coolant Temperature | ||||
| Pin No. | 35 | |||
| Resistance (Ohms) | 1320 | |||
| Comments | 100°F (38°C) | |||
| Coolant Temperature | ||||
| Pin No. | 35 | |||
| Resistance (Ohms) | 115 | |||
| Comments | 230°F (110°C) | |||
| Oil Temperature | ||||
| Pin No. | 135 | |||
| Resistance (Ohms) | 1320 | |||
| Comments | 100°F (38°C) | |||
| Oil Temperature | ||||
| Pin No. | 35 | |||
| Resistance (Ohms) | 47 | |||
| Comments | 300°F (149°C) | |||
| Cruise Vent Valve | ||||
| Pin No. | 403 | |||
| Resistance (Ohms) | 44 | |||
| Comments | 78°F (25°C) | |||
| Cruise Vacuum Valve | ||||
| Pin No. | 402 | |||
| Resistance (Ohms) | 44 | |||
| Comments | 78°F (25°C) | |||
| Speed Sensor | ||||
| Pin No. | 400 | |||
| Resistance (Ohms) | 346-493 | |||
| Comments | Measure between 400 and 401 | |||
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