DTC P0328 (6-Speed A/T, 16-18 9-Speed A/T)
DTC P0328 : Knock Sensor 1 (Bank 1) Circuit High Voltage
Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Fuel and Emissions Systems .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0328 Knock Sensor 1 (Bank 1) Circuit High Voltage |
DTC (PGM-FI)
- Problem verification
- 1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode.
- 4. Turn the vehicle to the ON mode.
- 5. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC Freeze Frame P0328 Knock Sensor 1 (Bank 1) Circuit High Voltage Is DTC P0328 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at knock sensor 1 (Bank 1) and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot - Refer to: How to Troubleshoot the Fuel and Emissions Systems
- Determine possible failure area (knock sensor 1 (Bank 1), others)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Knock sensor 1 (Bank 1) 2P connector - 3. Turn the vehicle to the ON mode.
- 4. Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode Knock sensor 1 (Bank 1) 2P connector: disconnected Test point 1 Knock sensor 1 (Bank 1) 2P connector No. 1 Test point 2 Knock sensor 1 (Bank 1) 2P connector No. 2 Is there about 5.0 V?
YES
Replace knock sensor 1 (Bank 1) .
NO
Go to step 3.
- Determine possible failure area (KS B1/KSB1 line, others)
- 1. Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode Knock sensor 1 (Bank 1) 2P connector: disconnected Test point 1 Knock sensor 1 (Bank 1) 2P connector No. 2 Test point 2 Body ground Is there about 5.0 V?
YES
Go to step 5.
NO
Go to step 4.
- Open wire check (KSB1/KS B1 line)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connector.
PCM connector C (51P) - 4. Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode Knock sensor 1 (Bank 1) 2P connector: disconnected PCM connector C (51P): disconnected Test point 1 Knock sensor 1 (Bank 1) 2P connector No. 2 Test point 2 PCM connector C (51P) No. 41 - Refer to:
PCM Connector for Inputs and Outputs (9-Speed A/T) (2016 2017 2018), or
PCM Connector for Inputs and Outputs(6-Speed A/T) (2016 2017 2018 2019 2020)Is there continuity?
YES
The KSB1/KS B1 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good PCM - Refer to: PCM Removal and Installation (6-Speed A/T), ('16-'18 9-Speed A/T) .
NO
Repair an open in the KSB1/KS B1 wire between the PCM (C41) and knock sensor 1 (Bank 1).
- Open wire check (KSSGB1 line)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connector.
PCM connector C (51P) - 4. Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode Knock sensor 1 (Bank 1) 2P connector: disconnected PCM connector C (51P): disconnected Test point 1 Knock sensor 1 (Bank 1) 2P connector No. 1 Test point 2 PCM connector C (51P) No. 42 - Refer to:
PCM Connector for Inputs and Outputs(6-Speed A/T) (2016 2017 2018 2019 2020), or
PCM Connector for Inputs and Outputs (9-Speed A/T) (2016 2017 2018)Is there continuity?
YES
The KSSGB1 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good PCM - Refer to: PCM Removal and Installation (6-Speed A/T), ('16-'18 9-Speed A/T) .
NO
Repair an open in the KSSGB1 wire between the PCM (C42) and knock sensor 1 (Bank 1).