Is DTC P0327 indicated?
YES : Check for poor connections or loose terminals at the knock sensor and the PCM. If the PCM was
updated, substitute a known-good PCM See PCM UPDATE or PCM REMOVAL AND
INSTALLATION , then recheck. If the PCM was substituted, go to step 1.
NO : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE . If any other Pending or Confirmed DTCs are
indicated, go to the indicated DTC's troubleshooting.
DTC P0328: KNOCK SENSOR CIRCUIT HIGH VOLTAGE
Fig. 146: DTC Troubleshooting Flow Chart (P0328)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and
review the general troubleshooting information See HOW TO TROUBLESHOOT
THE A/T SYSTEM or HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS .
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P0328 KNOCK SENSOR CIRCUIT HIGH VOLTAGE
1. Problem verification:
ο‘
ο‘
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE FUEL AND
EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE A/T SYSTEM .
ο‘
ο‘
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3. Turn the ignition switch to LOCK (0).
4. Turn the ignition switch to ON (II).
5. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0328 KNOCK SENSOR 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
the knock sensor and the PCM.
2. Determine possible failure area (knock sensor, others):
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
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Knock sensor 2P connector
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3. Turn the ignition switch to ON (II).
4. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Knock sensor 2P connector: disconnected
Test circuit KS, KSGND
Test point 1 Knock sensor 2P connector No. 1 (BLK)
Test point 2 Knock sensor 2P connector No. 2 (WHT)
Fig. 147: Measuring Voltage Between And Knock Sensor 2P Connector No. 1 (BLK) And No.
2 (WHT)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 5.0 V?
YES : REPLACE THE KNOCK SENSOR , then do the repair verification .
NO : Go to step 3.
3. Determine possible failure area (KS line, KSGND line):
ο‘
1. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Knock sensor 2P connector: disconnected
Test circuit KS
Test point 1 Knock sensor 2P connector No. 2 (WHT)
Test point 2 Body ground
Fig. 148: Measuring Voltage Between Knock Sensor 2P Connector No. 2 (WHT) And Body
Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 5.0 V?
YES : Go to step 4.
NO : Go to step 5.
4. Open wire check (KSGND line):
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ο‘
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1. Turn the ignition switch to LOCK (0).
2. Jump the SCS line with the HDS.
3. Disconnect the following connector.
PCM connector C (49P)
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4. Connect terminals A and B with a jumper wire.
Terminal A Knock sensor 2P connector No. 1 (BLK)
Terminal B Body ground
Fig. 149: Connecting Wire Between Knock Sensor 2P Connector No. 1 (BLK) And Body
Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
5. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Knock sensor 2P connector: disconnected
Knock sensor 2P connector No. 1: jumped to body ground
PCM connector C (49P): disconnected
Test circuit KSGND
Test point 1 PCM connector C (49P) No. 48 (GRN)
Test point 2 Body ground
Fig. 150: Checking Continuity Between PCM Connector C (49P) No. 48 (GRN) And Body
Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The KSGND wire is OK. Update the PCM See PCM UPDATE or PCM REMOVAL AND
INSTALLATION if it does not have the latest software, or substitute a known-good PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , then do the repair verification .
NO : Repair an open in the KSGND wire between the PCM (C48) and the knock sensor, then do the
repair verification .
5. Open wire check (KS line):
ο‘
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Jump the SCS line with the HDS.
3. Disconnect the following connector.
PCM connector C (49P)
ο‘
4. Connect terminals A and B with a jumper wire.
Terminal A Knock sensor 2P connector No. 2 (WHT)
Terminal B Body ground
Fig. 151: Identifying Knock Sensor 2P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
5. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Knock sensor 2P connector: disconnected
Knock sensor 2P connector No. 2: jumped to body ground
PCM connector C (49P): disconnected
Test circuit KS
Test point 1 PCM connector C (49P) No. 17 (RED)
Test point 2 Body ground
Fig. 152: Checking Continuity Between PCM Connector C (49P) No. 17 (RED) And Body
Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The KS wires are OK. Update the PCM See PCM UPDATE or PCM REMOVAL AND
INSTALLATION if it does not have the latest software, or substitute a known-good PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , then do the repair verification .
NO : Repair an open in the KS wire between the PCM (C17) and the knock sensor, then do the repair
verification .
REPAIR VERIFICATION
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ο‘
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1. Turn the ignition switch to LOCK (0).
2. Reconnect all connectors.
3. Turn the ignition switch to ON (II).
4. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS
SYSTEMS or HOW TO TROUBLESHOOT THE A/T SYSTEM .
ο‘
ο‘
5. DO THE PCM IDLE LEARN PROCEDURE .
6. Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC Pending DTC Freeze Frame
P0328 KNOCK SENSOR CIRCUIT HIGH VOLTAGE
Is DTC P0328 indicated?
YES : Check for poor connections or loose terminals at the knock sensor and the PCM. If the PCM was
updated, substitute a known-good PCM See PCM REMOVAL AND INSTALLATION or PCM
UPDATE , then recheck. If the PCM was substituted, go to step 1.
NO : Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE . If any other Pending or Confirmed DTCs are
indicated, go to the indicated DTC's troubleshooting.
DTC P0335: CKP SENSOR NO SIGNAL
2024 Honda CR-V Owner's Manual
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