C-06, Engine Coolant Temperature Sensor Circuit
| C-06, Engine Coolant Temperature Sensor Circuit |
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| Test | Work Order Description | Nominal Value |
| T01 | Check: Short to Voltage of Signal Circuit | |
| Ignition OFF Disconnect wiring harness connector from: P44 Air Mass Meter K70 Control Unit - Diesel Ignition ON Measure voltage between the following terminals: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 & Ground | less than 0.1 V |
| Yes: T02 | No: E05 |
| T02 | Check: Short to Ground of Signal Circuit | |
| Ignition OFF Measure resistance between the following terminals: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 & Ground | greater than 100 kOhm |
| Yes: T03 | No: E04 |
| T03 | Check: Interruption of Signal Circuit | |
| Measure resistance between the following terminals: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 13 & K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 Note: Temperature 0 �C (32 �F) : 7200 ... 7500 Ohm Temperature 10 �C (50 �F) : 4300 ... 4600 Ohm Temperature 20 �C (68 �F) : 2700 ... 3000 Ohm Temperature 30 �C (86 �F) : 1700 ... 1900 Ohm | 2700 ... 3000 Ohm Ambient temperature 20 �C (68 �F) |
| Yes: E01 | No: T04 |
| T04 | Check: Interruption of Signal Circuit | |
| Measure resistance between the following terminals: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 13 & K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 Note: Temperature 0 �C (32 �F) : 7200 ... 7500 Ohm Temperature 10 �C (50 �F) : 4300 ... 4600 Ohm Temperature 20 �C (68 �F) : 2700 ... 3000 Ohm Temperature 30 �C (86 �F) : 1700 ... 1900 Ohm | greater than 3000 Ohm Ambient temperature 20 �C (68 �F) |
| Yes: E02 | No: E03 |
| C-06, Engine Coolant Temperature Sensor Circuit |
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| Result | Cause Of Fault |
| E01 | Defective component: K70 Control Unit - Diesel |
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| E02 | Circuit interruption between: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 & P30 Temperature Sensor - Coolant Wiring Harness Connector (wiring harness side) Terminal 1 or K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 13 & |
| P30 Temperature Sensor - Coolant Wiring Harness Connector (wiring harness side) Terminal 2 or Defective component: P30 Temperature Sensor - Coolant |
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| E03 | Short circuit in wiring harness between: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 13 & K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 or Defective component: P30 Temperature Sensor - Coolant |
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| E04 | Short circuit to ground between: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 & P30 Temperature Sensor - Coolant Wiring Harness Connector (wiring harness side) Terminal 1 or K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 13 & |
| P30 Temperature Sensor - Coolant Wiring Harness Connector (wiring harness side) Terminal 2 or Defective component: P30 Temperature Sensor - Coolant |
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| E05 | Short circuit to voltage between: K70 Control Unit - Diesel Wiring Harness Connector (wiring harness side) Terminal 53 & P30 Temperature Sensor - Coolant Wiring Harness Connector (wiring harness side) Terminal 1 or Defective component: P30 Temperature Sensor - Coolant |
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