THROTTLE BODY REMOVAL AND INSTALLATION or THROTTLE BODY CLEANING ,
then do the repair verification . If DTC P1684 is indicated, replace the throttle body See
THROTTLE BODY DISASSEMBLY AND REASSEMBLY , THROTTLE BODY REMOVAL
AND INSTALLATION or THROTTLE BODY CLEANING , then do the repair verification .
NO : Replace the throttle body See THROTTLE BODY DISASSEMBLY AND REASSEMBLY ,
THROTTLE BODY REMOVAL AND INSTALLATION or THROTTLE BODY CLEANING ,
then do the repair verification .
REPAIR VERIFICATION
1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Turn the ignition switch to LOCK (0), and 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
P1684 THROTTLE VALVE RETURN SPRING
PERFORMANCE PROBLEM
Is DTC P1684 indicated?
YES : Check for poor connections or loose terminals at the throttle body and the PCM, then go to step 1.
NO : Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated
DTC's troubleshooting.
DTC P16BB: ALTERNATOR B TERMINAL CIRCUIT LOW VOLTAGE
Fig. 327: DTC Troubleshooting Flow Chart (P16BB)
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
P16BB ALTERNATOR B TERMINAL CIRCUIT LOW
VOLTAGE
1. Problem verification:
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or
HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
3. Start the engine.
4. Check under these conditions:
A/C on
Temperature control at maximum cool
Blower fan at maximum speed
Headlights on high beam
Rear window defogger on
Hold the engine speed at 2, 000 rpm (in P or N) for 1 minute.
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 : 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 alternator and the under-hood fuse/relay box. Also check the battery performance.
2. +B terminal check:
1. Check for poor connections or loose terminals at the alternator and the under-hood fuse/relay box
(+B line).
Are the connections and terminals OK?
YES : Go to step 3.
NO : Repair the connections or the terminals, then do the repair verification .
3. Open wire check (+B line):
1. Check for an open in the wire between the alternator and the under-hood fuse/relay box at the
engine harness.
Is the harness OK?
YES : Replace the alternator See ALTERNATOR OVERHAUL or ALTERNATOR REMOVAL
AND INSTALLATION , then do the repair verification .
NO : Repair an open in the +B wire between the alternator and the under-hood fuse/relay box, then do
the repair verification .
REPAIR VERIFICATION
1. Turn the ignition switch to ON (II).
2. Reset the PCM with the HDS See HOW TO TROUBLESHOOT THE A/T SYSTEM or HOW
TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS .
3. DO THE PCM IDLE LEARN PROCEDURE .
4. Start the engine.
5. Check under these conditions:
A/C on
Temperature control at maximum cool
Blower fan at maximum speed
Headlights on high beam
Rear window defogger on
Hold the engine speed at 2, 000 rpm (in P or N) for 1 minute.
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 : Check for poor connections or loose terminals at the alternator and the under-hood fuse/relay box, then
go to step 1.
NO : Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated
DTC's troubleshooting.
DTC P16E2: PGM-FI-ACG LIN COMMUNICATION ERROR
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
