Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Acura >> 2018 >> RLX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC Diagnostics (2 Of 6) (Except Hybrid) >> DTC Troubleshooting >> DTC P0332

DTC P0332

DTC P0332  : Knock Sensor 2 (Bank 2) Circuit Low Voltage

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information .
DTC Description Confirmed DTC Pending DTC Freeze Frame
P0332 Knock Sensor 2 (Bank 2) Circuit Low Voltage      

DTC (PGM-FI)

  1. 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
    P0332 Knock Sensor 2 (Bank 2) Circuit Low Voltage      

    Is DTC P0332 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 2 (Bank 2) and the PCM.

  2. Determine possible failure area (knock sensor 2 (Bank 2), others)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connector.

    Knock sensor 2 (Bank 2) 2P connector

    -3. Turn the vehicle to the ON mode.

    -4. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0333 Knock Sensor 2 (Bank 2) Circuit Low Voltage      

    Is DTC P0333 indicated?

    YES 

    Replace knock sensor 2 (Bank 2) , then do the repair verification.

    NO 

    Go to step 3.

  3. Shorted wire check (KSB2/KS B2 line, KSSGB2 line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Jump the SCS line with the HDS.

    -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
    PCM connector C (51P) disconnected
    Knock sensor 2 (Bank 2) 2P connector: disconnected
    Test circuit KS B2, KSSGB2
    Test point 1 Knock sensor 2 (Bank 2) 2P connector No. 1 (BLK)
    Test point 2 Knock sensor 2 (Bank 2) 2P connector No. 2 (WHT)
    GHH344740Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short between the KSB2/KS B2 and the KSSGB2 wires, then do the repair verification.

    NO 

    Go to step 4.

  4. Shorted wire check (KSB2/KS B2 line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    PCM connector C (51P) disconnected
    Knock sensor 2 (Bank 2) 2P connector: disconnected
    Test circuit KS B2
    Test point 1 Knock sensor 2 (Bank 2) 2P connector No. 2 (WHT)
    Test point 2 Body ground
    GHH344741Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short in the KSB2/KS B2 wire between the PCM (C43) and knock sensor 2 (Bank 2), then do the repair verification.

    NO 

    The KSB2/KS B2 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then do the repair verification.

  5. Repair verification

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Reconnect all connectors.

    -3. Exit the SCS mode with the HDS.

    -4. Turn the vehicle to the ON mode.

    -5. Reset the PCM with the HDS .

    Reset PCM

    -6. Do the PCM idle learn procedure.

    -7. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0332 Knock Sensor 2 (Bank 2) Circuit Low Voltage      

    DTC (PGM-FI)

    Is DTC P0332 indicated?

    YES 

    Check for poor connections or loose terminals at knock sensor 2 (Bank 2) and the PCM. If the PCM was updated, substitute a known-good PCM , then recheck. If the PCM was substituted, go to step 1.

    NO 

    Troubleshooting is complete. If the PCM was substituted, replace the original PCM . If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.