fluid pressure switch B (3rd clutch) and the PCM, then go to step 1 and recheck. If the PCM was updated,
substitute a known-good PCM See PCM REMOVAL AND INSTALLATION or PCM UPDATE , and
check the OBD STATUS again.
NOT COMPLETED Repair verification is incomplete. Meet the test condition, and check the OBD STATUS
again.
DTC P0848: TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH)
CIRCUIT HIGH
Fig. 58: DTC Troubleshooting Flow Chart (P0848)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot with
the HDS, and review the General Troubleshooting Information See HOW TO
TROUBLESHOOT THE A/T SYSTEM or HOW TO TROUBLESHOOT THE FUEL
AND EMISSIONS SYSTEMS .
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0848 Transmission Fluid Pressure Switch B (3rd Clutch)
Circuit High
1. 3rd Pressure Switch signal check:
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Raise the vehicle on a lift. Make sure it is securely supported, and allow the front wheels to
rotate freely.
4. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
5. Start the engine, disable the VSA by pressing the VSA OFF button (if equipped). Run the vehicle
in 3rd gear, and check the parameter(s) below with the HDS.
Threshold Current conditions
Signal
Values Unit Values
Unit
3rd Pressure Switch OFF
Is the 3rd Pressure Switch ON in 3rd gear?
YES : The 3rd Pressure Switch signal is OK. Go to step 2.
NO : Go to step 3.
2. Problem verification:
1. Test-drive the vehicle in 3rd gear for at least 2 seconds.
2. Monitor the OBD STATUS for P0848 in the DTCs MENU with the HDS.
DTC Description
OBD Status
P0848 Transmission Fluid Pressure Switch B (3rd Clutch) Circuit High
Does the HDS indicate FAILED?
YES : The failure is duplicated. Go to step 3.
NO : If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor
connections or loose terminals between transmission fluid pressure switch B (3rd clutch) and the PCM. If
the HDS indicates NOT COMPLETED, test-drive again.
3. Transmission fluid pressure switch B (3rd clutch) check:
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
Transmission fluid pressure switch B (3rd clutch) 1P connector
3. Turn the ignition switch to ON (II).
4. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Transmission fluid pressure switch B (3rd clutch) 1P connector: disconnected
Test circuit OP 3 SW
Test point 1 Transmission fluid pressure switch B (3rd clutch) 1P connector No. 1 (BLU)
Test point 2 Body ground
Fig. 59: Measuring Voltage Between Transmission Fluid Pressure Switch B (3rd Clutch) 1P
Connector No. 1 (BLU) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 5 V?
YES : REPLACE TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH) , then do the
repair verification .
NO : Go to step 4.
4. Open wire check (OP 3 SW line):
1. Turn the ignition switch to LOCK (0).
2. Jump the SCS line with the HDS.
3. Disconnect the following connector.
PCM connector B (49P)
4. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Transmission fluid pressure switch B (3rd clutch) 1P connector: disconnected
PCM connector B (49P): disconnected
Test circuit OP 3 SW
Test point 1 Transmission fluid pressure switch B (3rd clutch) 1P connector No. 1 (BLU)
Test point 2 PCM connector B (49P) No. 9 (BLU)
Fig. 60: Checking Continuity Between Transmission Fluid Pressure Switch B (3rd Clutch) 1P
Connector No. 1 (BLU) And PCM Connector B (49P) No. 9 (BLU)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The OP 3 SW wire is OK. Update the PCM if it does not have the latest software See PCM
REMOVAL AND INSTALLATION or PCM UPDATE , 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 OP 3 SW wire between transmission fluid pressure switch B (3rd clutch) and
the PCM, then do the repair verification .
REPAIR VERIFICATION (OBD STATUS CHECK)
1. Reconnect all connectors.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
5. Test-drive the vehicle in 3rd gear for at least 2 seconds, then drive in 4th gear for at least 2 seconds.
6. Monitor the OBD STATUS for P0848 in the DTCs MENU with the HDS.
DTC Description
OBD Status
P0848 Transmission Fluid Pressure Switch B (3rd Clutch) Circuit High
Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?
PASSED Troubleshooting is complete. If the PCM was substituted, replace the original PCM See PCM
REMOVAL AND INSTALLATION or PCM UPDATE . Check for other DTC after this troubleshooting. If
any other Pending or Confirmed DTCs were indicated, go to the indicated DTC's troubleshooting.
FAILED Troubleshooting is incomplete. Check for poor connections or loose terminals between transmission
fluid pressure switch B (3rd clutch) and the PCM, then go to step 1 and recheck. If the PCM was updated,
substitute a known-good PCM See PCM REMOVAL AND INSTALLATION or PCM UPDATE , and
check the OBD STATUS again.
NOT COMPLETED Repair verification is incomplete. Meet the test condition, and check the OBD STATUS
again.
Fig. 61: DTC Troubleshooting Flow Chart (P0962)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
DTC P0962: A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A
(OPEN OR SHORT)
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot
with the HDS, and review the General Troubleshooting Information See
HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW TO
TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
This code is caused by an electrical circuit problem and cannot be caused
by a mechanical problem in the transmission.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0962 A/T Clutch Pressure Control Solenoid Valve A
(Open or Short)
1. Problem verification (DTC check):
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and wait for at least 1 second.
4. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0962 A/T Clutch Pressure Control Solenoid Valve A
(Open or Short)
Is DTC P0962 indicated?
YES : The failure is duplicated. Go to step 5.
NO : Go to step 2.
2. IG1 FI-ECU line check:
1. Turn the ignition switch to LOCK (0).
2. Jump the SCS line with the HDS.
3. Disconnect the following connector.
PCM connector A (49P)
4. Turn the ignition switch to ON (II).
5. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
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