F0:DATA LIST
| No. | Tech 1 Display | Conditions for checking | Nominal value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 12 | COOLANT TEMP. SW | Ignition "ON" | INACTIVE 0V | - | 40, 19 |
| Engine running at idle speed | |||||
| Coolant temperature is less than 111 °C (231 °F) | INACTIVE 0V | ||||
| Coolant temperature is greater than 111 °C (231 °F) | ACTIVE 12V | ||||
| Coolant fan is running | |||||
| Troubleshooting | Nominal value | Cause of Fault |
· Ignition "OFF"
· Disconnect plug from coolant temperature switch S88
| · Using multimeter, check from Motronic control unit K61 / Ter. 40 to coolant temperature switch S88 / Ter. 1 | approx. 0 W | · Lead interruption from |
|---|---|---|
| - Motronic control unit K61 / Ter. 40 to coolant temperature switch S88 / Ter. 1 | ||
| · Using multimeter, check from Motronic control unit K61 / Ter. 40 to ground | infinite W | · Short circuit to ground from |
- Motronic control unit K61 / Ter. 40 to coolant temperature switch S88 / Ter. 1
| · Malfunction in radiator blower circuit |