Temperature Gauge
NOTE:
Temperature gauge sending units have single-blade connectors and are located on or near thermostat housings.
- If temperature gauge needle does not move, check for blown fuse or loose harness connector.
- To test temperature gauge, disconnect temperature gauge sending unit connector wire. Connect Red wire lead of Checker (49-0839-285) to sending unit connector and Black wire lead to ground.
- Turn ignition switch to ON position. Ensure needle position corresponds to resistance measurement. See TEMPERATURE GAUGE RESISTANCE . See Fig 1 .
- Allow 2 minutes for needle to stabilize. Allowable limit of needle deflection is twice width of needle.
- If gauge readings are as specified in TEMPERATURE GAUGE RESISTANCE table, replace sending unit. If gauge readings are not as specified, check wiring. If wiring is okay, replace gauge.
TEMPERATURE GAUGE RESISTANCE
| Needle Position | Ohms | ||||
|---|---|---|---|---|---|
| B2200 & B2600i | |||||
| Circular Gauge (1) | |||||
| HOT | 12 | ||||
| COLD | 154 | ||||
| Vertical Gauge (1) | |||||
| HOT | 12 | ||||
| COLD | 133 | ||||
| Miata | |||||
| HOT | 20 | ||||
| COLD | 183 | ||||
| MPV | |||||
| HOT | 19 | ||||
| COLD | 153 | ||||
| MX-6 & 626 | |||||
| HOT | 8 | ||||
| Normal | 35 | ||||
| COLD | 215 | ||||
| Navajo | |||||
| HOT | 9.7 | ||||
| COLD | 73 | ||||
| Protege & 323 | |||||
| With Tachometer | |||||
| HOT | 15.2 | ||||
| COLD | 148 | ||||
| Without Tachometer | |||||
| HOT | 19 | ||||
| COLD | 153 | ||||
| RX7 | |||||
| HOT | 13 | ||||
| COLD | 154 | ||||
| 929 | |||||
| HOT (Danger) | 18 | ||||
| HOT (Normal Range) | 23 | ||||
| COLD (Normal Range) | 103 | ||||
| COLD (Lowest Range) | 215 | ||||
| 929 (1992) | |||||
| HOT | 18 | ||||
| COLD | 181 | ||||
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