Download
Table of Contents > DTC P0563: PCM Power Source Circuit Unexpected Voltage

Honda CR-V Programmed Fuel Injection (PGM-FI) system ➜ DTC P0563: PCM Power Source Circuit Unexpected Voltage

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. Start the engine, and let it idle without load for 1 minute.  
4. Check for Pending or Confirmed DTCs with the HDS.  
Confirmed  
DTC  
Pending  
DTC  
Freeze  
Frame  
DTC Description  
P16BB ALTERNATOR B TERMINAL CIRCUIT  
LOW VOLTAGE  
Is DTC P16BB indicated?  
YES : DO THE TROUBLESHOOTING FOR DTC P16BB.  
NO : Go to step 2.  
2. Problem verification:  
ο‚‘
1. Check for Pending or Confirmed DTCs with the HDS.  
DTC Description  
Confirmed DTC Pending DTC Freeze Frame  
P0562 CHARGING SYSTEM LOW VOLTAGE  
Is DTC P0562 is indicated?  
YES : Repair or replace the alternator See ALTERNATOR OVERHAUL or ALTERNATOR  
REMOVAL AND INSTALLATION .  
NO : Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at  
the +B terminal on the alternator and the under-hood fuse/relay box.  
DTC P0563: PCM POWER SOURCE CIRCUIT UNEXPECTED VOLTAGE  
Fig. 260: DTC Troubleshooting Flow Chart (P0563)  
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 .  
Confirmed  
DTC  
Pending  
DTC  
Freeze  
Frame  
DTC Description  
P0563 PCM POWER SOURCE CIRCUIT UNEXPECTED  
VOLTAGE  
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‚‘
ο‚‘
ο‚‘
3. Turn the ignition switch to LOCK (0).  
4. Wait 10 seconds.  
5. Turn the ignition switch to ON (II).  
6. Check for Pending or Confirmed DTCs with the HDS.  
Confirmed  
DTC  
Pending  
DTC  
Freeze  
Frame  
DTC Description  
P0563 PCM POWER SOURCE CIRCUIT  
UNEXPECTED VOLTAGE  
Is DTC P0563 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  
PGM-FI main relay 1 and the PCM.  
2. Determine possible failure area (FI MAIN RLY OUT line, 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. Measure the voltage between test points 1 and 2.  
Test condition IG LOCK (0)  
PCM connector A (49P): disconnected  
Test circuit FI MAIN RLY CL-  
Test point 1 PCM connector A (49P) No. 7 (GRY)  
Test point 2 Body ground  
Fig. 261: Measuring Voltage Between PCM Connector A (49P) No. 7 (GRY) And Body  
Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there battery voltage?  
YES : Go to step 5.  
NO : Go to step 3.  
3. Shorted wire check (FI MAIN RLY CL- line):  
ο‚‘
1. Remove PGM-FI main relay 1 (A) from the under-dash fuse/relay box.  
Fig. 262: Identifying PGM-FI Main Relay  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
ο‚‘
2. Check for continuity between test points 1 and 2.  
Test condition IG LOCK (0)  
PCM connector A (49P): disconnected  
PGM-FI main relay 1: disconnected  
Test circuit FI MAIN RLY CL-  
Test point 1 PCM connector A (49P) No. 7 (GRY)  
Test point 2 Body ground  
Fig. 263: Checking Continuity Between PCM Connector A (49P) No. 7 (GRY) And Body  
Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there continuity?  
YES : Repair a short in the FI MAIN RLY CL- wire between the PCM (A7) and PGM-FI main relay 1,  
then do the repair verification .  
NO : The FI MAIN RLY CL- wire is OK. Go to step 4.  
4. Relay check:  
ο‚‘
1. TEST PGM-FI MAIN RELAY 1 .  
Is PGM-FI main relay 1 OK?  
YES : 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 : Replace PGM-FI main relay 1, then do the repair verification .  
5. Shorted wire check (FI MAIN RLY OUT line to power):  
ο‚‘
1. Remove PGM-FI main relay 1 (A) from the under-dash fuse/relay box.  
Fig. 264: Identifying PGM-FI Main Relay  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
ο‚‘
2. Measure the voltage between test points 1 and 2.  
Test condition IG LOCK (0)  
PCM connector A (49P): disconnected  
PGM-FI main relay 1: disconnected  
Test circuit FI MAIN RLY OUT  
Test point 1 PCM connector A (49P) No. 9 (BRN)  
Test point 2 Body ground  
Fig. 265: Measuring Voltage Between PCM Connector A (49P) No. 9 (BRN) And Body  
Ground  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there battery voltage?  
YES : Repair a short to power in the FI MAIN RLY OUT wire between the PCM (A9) and PGM-FI main  
relay 1, then do the repair verification .  
NO : The FI MAIN RLY OUT wire is OK. Go to step 6.  
6. Relay check:  
ο‚‘
1. TEST PGM-FI MAIN RELAY 1 .  
Is PGM-FI main relay 1 OK?  
YES : PGM-FI main relay 1 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 : Replace PGM-FI main relay 1, 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‚‘
ο‚‘
ο‚‘
ο‚‘
5. DO THE PCM IDLE LEARN PROCEDURE .  
6. Turn the ignition switch to LOCK (0).  
7. Wait 10 seconds.  
8. Turn the ignition switch to ON (II).  
9. Check for Pending or Confirmed DTCs with the HDS.  
Confirmed  
DTC  
Pending  
DTC  
Freeze  
Frame  
DTC Description  
P0563 PCM POWER SOURCE CIRCUIT UNEXPECTED  
VOLTAGE  
Is DTC P0563 indicated?  
YES : Check for poor connections or loose terminals at PGM-FI main relay 1 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 UPDATE  
or PCM REMOVAL AND INSTALLATION . If any other Pending or Confirmed DTCs are indicated, go to  
the indicated DTC's troubleshooting.  
DTC P0602: PCM PROGRAMMING ERROR  
Fig. 266: DTC Troubleshooting Flow Chart (P0602)  
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 .  


This DTC is indicated when a PCM update is not completed.  
Do not turn the ignition switch to ACC (I) or LOCK (0) while updating the  
PCM. If you do, the PCM can be damaged.  
DTC Description  
Confirmed DTC Pending DTC Freeze Frame  
P0602 PCM PROGRAMMING ERROR  
1. Problem verification (update):  
ο‚‘
1. Do the PCM update procedure See PCM REMOVAL AND INSTALLATION or PCM  
UPDATE .