C-22, Knock Sensor 1 Circuit
| C-22, Knock Sensor 1 Circuit |
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| Test | Work Order Description | Nominal Value |
| T01 | Check: Short to Voltage/Ground/Interruption of Signal Circuit | |
| Check cable shielding of following component: P46 Sensor - Knocking Control 1 | Test okay? |
| Yes: T02 | No: E05 |
| T02 | Check: Short to Voltage of Signal Circuit | |
| Ignition OFF Disconnect wiring harness connector from: K69 Control Unit - Simtec Ignition ON Measure voltage between the following terminals: K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 12 & Ground | less than 0.1 V |
| Yes: T03 | No: E04 |
| T03 | Check: Short to Voltage of Signal Circuit | |
| Measure voltage between the following terminals: K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 30 & Ground | less than 0.1 V |
| Yes: T04 | No: E03 |
| T04 | Check: Component | |
| Ignition OFF Tap the engine block briefly near the knock sensor, using a hammer or a similar object. Repeat procedure several times Measure voltage between the following terminals: K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 12 & K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 30 | greater than 0 V |
| Yes: E01 | No: E02 |
| C-22, Knock Sensor 1 Circuit |
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| Result | Cause Of Fault |
| E01 | Defective component: K69 Control Unit - Simtec |
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| E02 | Short circuit to ground/interruption of circuit between: P46 Sensor - Knocking Control 1 Wiring Harness Connector (wiring harness side) Terminal 1 & K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 12 or P46 Sensor - Knocking Control 1 Wiring Harness Connector (wiring harness side) Terminal 2 & |
| K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 30 or Defective component: P46 Sensor - Knocking Control 1 |
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| E03 | Short circuit to voltage between: K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 30 & P46 Sensor - Knocking Control 1 Wiring Harness Connector (wiring harness side) Terminal 2 or Defective component: P46 Sensor - Knocking Control 1 |
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| E04 | Short circuit to voltage between: K69 Control Unit - Simtec Wiring Harness Connector (wiring harness side) Terminal 12 & P46 Sensor - Knocking Control 1 Wiring Harness Connector (wiring harness side) Terminal 1 or Defective component: P46 Sensor - Knocking Control 1 |
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| E05 | Repair the concerned circuit/component. |
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