Pump Circuit Check
Disconnect ASCD pump harness connector. Using DVOM, measure resistance between specified pump terminals. See PUMP RESISTANCE TEST table. Replace pump if resistance is not as specified. If resistance is as specified, check for open or short in wiring harness between pump and ASCD control unit. See WIRING DIAGRAMS . Repair as necessary.
PUMP RESISTANCE TEST (1)
| Check Resistance Between Terminal Nos. | Approximate Ohms | |||
|---|---|---|---|---|
| Altima | ||||
| 1 & 2 | 67 | |||
| 1 & 3 | 67.3 | |||
| 1 & 4 | 11.8 | |||
| Frontier | ||||
| 1 & 2 | 18.2 | |||
| 1 & 3; 1 & 4 | 65.5 | |||
| Pathfinder | ||||
| 1 & 2 | 3 | |||
| 1 & 3; 1 & 4 | 65 | |||
| Quest & Sentra | ||||
| 1 & 2; 1 & 3; 1 & 4 | 65 | |||
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