YES : Check for poor connections or loose terminals at the MAP 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 P0108: MAP SENSOR CIRCUIT HIGH VOLTAGE
Fig. 21: DTC Troubleshooting Flow Chart (P0108)
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
P0108 MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR CIRCUIT HIGH VOLTAGE
1. Problem verification:
ο‘
1. Turn the ignition switch to ON (II).
2. Check the MAP SENSOR in the DATA LIST with the HDS.
ο‘
Threshold
Values
Current conditions
Unit Values Unit
Signal
MAP SENSOR More than 4.49 V
Do the current condition(s) match the threshold?
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 MAP sensor and the PCM.
2. Determine possible failure area (MAP sensor, others):
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
ο‘
MAP sensor 3P connector
ο‘
3. Connect terminals A and B with a jumper wire.
Terminal A MAP sensor 3P connector No. 1 (GRY)
Terminal B MAP sensor 3P connector No. 2 (GRN)
Fig. 22: Identifying MAP Sensor 3P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
ο‘
4. Turn the ignition switch to ON (II).
5. Check the parameter(s) below with the HDS.
Threshold
Values
Current conditions
Unit Values Unit
Signal
MAP SENSOR More than 4.49 V
Do the current condition(s) match the threshold?
YES : Go to step 3.
NO : REPLACE THE MAP SENSOR , then do the repair verification .
3. Determine possible failure area (MAP(PB) line, SG1 line):
ο‘
ο‘
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Remove the jumper wire.
3. Turn the ignition switch to ON (II).
4. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
MAP sensor 3P connector: disconnected
Test circuit VCC1, SG1
Test point 1 MAP sensor 3P connector No. 1 (GRY)
Test point 2 MAP sensor 3P connector No. 3 (PNK)
Fig. 23: Measuring Voltage Between MAP Sensor 3P Connector No. 1 (GRY) And No. 3
(PNK)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 5.0 V?
YES : Go to step 5.
NO : Go to step 4.
4. Open wire check (SG1 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. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
MAP sensor 3P connector: disconnected
PCM connector C (49P): disconnected
Test circuit SG1
Test point 1 PCM connector C (49P) No. 24 (GRY)
Test point 2 MAP sensor 3P connector No. 1 (GRY)
Fig. 24: Checking Continuity Between PCM Connector C (49P) No. 24 (GRY) And MAP
Sensor 3P Connector No. 1 (GRY)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The SG1 wire is OK. Update the PCM See PCM REMOVAL AND INSTALLATION or PCM
UPDATE 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 SG1 wire between the PCM (C24) and the MAP sensor, then do the repair
verification .
5. Open wire check (MAP(PB) 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 B (49P)
ο‘
4. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
MAP sensor 3P connector: disconnected
PCM connector B (49P): disconnected
Test circuit MAP(PB)
Test point 1 PCM connector B (49P) No. 31 (GRN)
Test point 2 MAP sensor 3P connector No. 2 (GRN)
Fig. 25: Checking Continuity Between PCM Connector B (49P) No. 31 (GRN) And MAP
Sensor 3P Connector No. 2 (GRN)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The MAP(PB) wire is OK. Update the PCM See PCM REMOVAL AND INSTALLATION or
PCM UPDATE 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 MAP(PB) wire between the PCM (B31) and the MAP 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 A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
ο‘
ο‘
5. DO THE PCM IDLE LEARN PROCEDURE .
6. Check for Pending or Confirmed DTCs with the HDS.
Confirmed
DTC
Pending
DTC
Freeze
Frame
DTC Description
P0108 MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR CIRCUIT HIGH VOLTAGE
Is DTC P0108 indicated?
YES : Check for poor connections or loose terminals at the MAP 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 P0111: IAT SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
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
