Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P2135 TP SENSOR A/B INCORRECT VOLTAGE
CORRELATION
Is DTC P2135 indicated?
YES : Check for poor connections or loose terminals at the throttle body 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 P2138: APP SENSOR A/B (TP SENSOR D/E) INCORRECT VOLTAGE
CORRELATION
Fig. 377: DTC Troubleshooting Flow Chart (P2138)
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 FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE A/T
SYSTEM .
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P2138 APP SENSOR A/B (TP SENSOR D/E) INCORRECT
VOLTAGE CORRELATION
1. Problem verification:
ο‘
1. Turn the ignition switch to ON (II).
ο‘
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or
HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
ο‘
ο‘
3. Press the accelerator pedal to the floor.
4. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P2138 APP SENSOR A/B (TP SENSOR D/E)
INCORRECT VOLTAGE CORRELATION
Is DTC P2138 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 APP sensor and the PCM.
2. APP sensor signal check:
ο‘
1. Check the parameter(s) below with the HDS.
Current conditions
Signal
Values
Unit
APP SENSOR A
APP SENSOR B
Are they the same voltage?
YES : Go to step 3.
NO : REPLACE THE APP SENSOR , then do the repair verification .
3. Determine possible failure area (PCM, others):
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 A (49P)
ο‘
4. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
PCM connector A (49P): disconnected
Test circuit APS1, APS2
Test point 1 PCM connector A (49P) No. 28 (ORN)
Test point 2 PCM connector A (49P) No. 29 (PUR)
Fig. 378: Checking Continuity Between PCM Connector A (49P) No. 28 (ORN) And No. 29
(PUR)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Go to step 4.
NO : 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 UPDATE or PCM
REMOVAL AND INSTALLATION , then do the repair verification .
4. Shorted wire check (APS1 line to APS2 line):
ο‘
1. Disconnect the following connector.
APP sensor 6P connector
ο‘
2. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
PCM connector A (49P): disconnected
APP sensor 6P connector: disconnected
Test circuit APS1, APS2
Test point 1 PCM connector A (49P) No. 28 (ORN)
Test point 2 PCM connector A (49P) No. 29 (PUR)
Fig. 379: Checking Continuity Between PCM Connector A (49P) No. 28 (ORN) And No. 29
(PUR)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : Repair a short in the APS1, APS2 wires between PCM connector terminals A28 (APS1 line) and
A29 (APS2 line), then do the repair verification .
NO : The APS1 and APS2 wires are OK. REPLACE THE APP SENSOR , then do the repair
verification .
REPAIR VERIFICATION
ο‘
ο‘
ο‘
ο‘
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‘
ο‘
ο‘
ο‘
5. DO THE PCM IDLE LEARN PROCEDURE .
6. Turn the ignition switch to LOCK (0).
7. Turn the ignition switch to ON (II).
8. Press the accelerator pedal to the floor.
9. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P2138 APP SENSOR A/B (TP SENSOR D/E) INCORRECT
VOLTAGE CORRELATION
Is DTC P2138 indicated?
YES : Check for poor connections or loose terminals at the APP 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 P2176: THROTTLE ACTUATOR CONTROL SYSTEM IDLE POSITION
NOT LEARNED
Fig. 380: DTC Troubleshooting Flow Chart (P2176)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
CAUTION: Do not insert your fingers into the installed throttle body when you turn
the ignition switch to ON (II), or while the ignition switch is in ON (II). If you
do, you will seriously injure your fingers if the throttle valve is activated.
NOTE:
ο¬
Before you troubleshoot, record all freeze data and any on-board
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
2015 Honda CR-V Owner's Manual
