C-19, Knock Sensor 1 Circuit
| C-19, Knock Sensor 1 Circuit |
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| Test | Work Order Description | Nominal Value |
| T01 | Check: Short to Voltage of Signal Circuit | |
| Disconnect wiring harness connector from: P46 Sensor - Knocking Control Ignition ON Measure voltage between the following terminals: P46 Sensor - Knocking Control Wiring Harness Connector (control unit side) Terminal A & Ground | less than 0.2 V |
| Yes: T02 | No: E06 |
| T02 | Check: Interruption of Signal Circuit | |
| Ignition OFF Measure resistance between the following terminals: P46 Sensor - Knocking Control Wiring Harness Connector (control unit side) Terminal A & Ground | greater than 50 kOhm |
| Yes: T03 | No: E05 |
| T03 | Check: Circuit Interruption of Ground Circuit | |
| Measure resistance between the following terminals: P46 Sensor - Knocking Control Wiring Harness Connector (control unit side) Terminal B & Ground | less than 2 Ohm |
| Yes: T04 | No: E04 |
| T04 | Check: Diagnostic Trouble Code stored | |
| Vehicle driven over a considerable distance | Following trouble codes stored: P0325 |
| Yes: E01 | No: T05 |
| T05 | Check: Diagnostic Trouble Code stored | |
| Vehicle driven over a considerable distance | Following trouble codes stored: P1602 |
| Yes: E02 | No: E03 |
| C-19, Knock Sensor 1 Circuit |
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| Result | Cause Of Fault |
| E01 | Defective component: P46 Sensor - Knocking Control |
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| E02 | Perform service programming SPS to download the latest version of control unit software into the control unit. |
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| E03 | Are the nominal values okay and the system is still faulty perform Service Programming SPS. |
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| E04 | Circuit interruption between: P46 Sensor - Knocking Control Wiring Harness Connector Terminal B & K57 Control Unit - Multec Wiring Harness Connector Terminal D15 |
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| E05 | Short circuit to ground between: P46 Sensor - Knocking Control Wiring Harness Connector Terminal A & K57 Control Unit - Multec Wiring Harness Connector Terminal C11 |
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| E06 | Short circuit to voltage between: P46 Sensor - Knocking Control Wiring Harness Connector Terminal A & K57 Control Unit - Multec Wiring Harness Connector Terminal C11 Defective component: K57 Control Unit - Multec |
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