Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig. 30: Fuel And Emissions Systems Symptom Troubleshooting Flow Chart - Engine Related Problems
(6 Of 6)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ENGINE WILL NOT START, ENGINE STARTS BUT STALLS IMMEDIATELY,
OR ENGINE IS HARD TO START
Special Tools Required
Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available
NOTE:
Before beginning this troubleshooting:
ο¬
Make sure the battery is fully charged.
ο¬
ο¬
Make sure the fuel tank is at least 1/4 full.
Make sure the engine oil level is correct.
1. DTC check:
ο‘
1. Turn the ignition switch to ON (II).
2. Check for Pending or Confirmed DTCs with the HDS.
ο‘
DTC Description Confirmed DTC Pending DTC Freeze Frame
Are any Pending or Confirmed DTCs indicated?
YES : Go to the indicated DTC's troubleshooting.
NO : Go to step 2.
NOTE:
If the HDS does not communicate with the vehicle, GO TO THE PCM
POWER AND GROUND CIRCUIT TROUBLESHOOTING.
2. Immobilizer system check:
ο‘
1. Select HDS immobilizer set-up, select immobilizer information, then select status log.
NOTE:
When the status log count is found, it means the immobilizer system has
prohibited the engine from starting in the past.
The number of status log count shows the frequency that the system has prohibited the engine from
starting in the past.
If immobilizer system has not status log count, the system is normal.
Was the status log count found?
YES : GO TO IMMOBILIZER SYSTEM, STATUS LOG .
NO : Go to step 3.
3. Problem verification (snapshot sampling):
ο‘
1. Set the HDS to record a HIGH-SPEED SNAPSHOT of following parameters for 30 seconds.
ο¬
ο¬
ο¬
ο¬
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ENGINE SPEED
MAP SENSOR
MAF SENSOR
ECT SENSOR 1
BATTERY
ο¬
ο¬
ο¬
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CKP NOISE
CKP NO PULSE
CMP NOISE
CMP NO PULSE
IMMOBILIZER
ο‘
2. Begin the snapshot, then try to start the engine.
Was the engine hard to start?
YES : Go to step 6 (diagnosis by parameter troubleshooting).
NO : Go to step 4.
4. On-board snapshot check (engine will not start):
1. Check for a record of Hard to Start Engine in the on-board snapshot with the HDS.
ο‘
Hard to Start Engine in the on-board snapshot recorded?
YES : Go to step 6 (diagnosis by parameter troubleshooting).
NO : Go to step 5.
5. On-board snapshot check (engine stall):
ο‘
1. Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.
NOTE:
When Hard to Start on-board snapshot data was not recorded, use the
Engine Stall on-board snapshot data and check the cause of failure.
Engine Stall as on-board snapshot recorded?
YES : Go to step 18 (diagnosis by parameter (ST FUEL TRIM)).
NO : Go to step 20 (fuel system troubleshooting).
NOTE:
In the following conditions, the on-board snapshot will not be recorded
when the engine stalls.
ο¬
ο¬
Ignition switch turned to LOCK (0) shortly after starting the engine.
Vehicle is out of the Hard to start condition to record an on-board snapshot (see the gray zone of
following graph).
ο¬
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Low or dead battery
Disconnecting the battery
ECT SENSOR 1 (Β°F (Β°C)) -40 (-40) -22 (-30) -13 (-25) -4 (-20) 5 (-15) 14 (-10) 194 (90)
Start time (sec) 20 10 3.5 2.5 1.5 1.5
5
Fig. 31: Snapshot Of Hard To Start Engine On-Board
Courtesy of AMERICAN HONDA MOTOR CO., INC.
6. On-board snapshot or snapshot check (IMMOBILIZER):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the IMMOBILIZER and ENGINE SPEED in the configuration list.
Compare the snapshot parameters while the engine is cranking, from the chart, to determine the
problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
When IMMOBILIZER becomes
"BAN" during cranking or after start,
the fuel pump is stopped by
IMMOBILIZER
Pattern
1
IMMOBILIZER inhibit.
ο¬
No failure in the engine
inhibit
IMMOBILIZER inhibit
inhibit
IMMOBILIZER permit
IMMOBILIZER is normal when
IMMOBILIZER is "permit" when
cranking or after start.
Pattern Normal
IMMOBILIZER permit
2
Normal
Which pattern is indicated?
Pattern 1 The immobilizer system has failure. GO TO THE IMMOBILIZER SYSTEM
CHECK .
Pattern 2 The immobilizer system is OK. Go to step 7 (diagnosis by parameter (ENGINE SPEED)).
7. On-board snapshot or snapshot check (ENGINE SPEED):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the ENGINE SPEED pattern chart in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the pattern
from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
ENGINE SPEED when cranking is normal
Pattern
1
normal
ENGINE SPEED when cranking is
When ENGINE SPEED during
cranking is low, weak battery or
increased engine friction can be
considered.
Pattern
2
low
Which pattern is indicated?
Pattern 1 The engine cranking speed is OK. Go to step 8 (diagnosis by parameter (BATTERY)).
Pattern 2 Diagnostic procedure:
1. TEST THE BATTERY .
2. Check the battery cables and connections.
3. Check the starter; KA KC models, KX model See STARTER OVERHAUL or STARTER
OVERHAUL or STARTER REMOVAL, INSTALLATION, AND PERFORMANCE TEST .
4. Check the engine friction.
8. On-board snapshot or snapshot check (BATTERY):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the BATTERY and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the BATTERY
pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
BATTERY voltage low when
ο¬
When BATTERY voltage
during cranking is too low,
there is a possibility that PCM
and/or engine is unable to
start.
Pattern
1
ο¬
The PCM and other system
units require 7.0 V or more to
start.
cranking
BATTERY voltage normal when cranking
Pattern
2
To start the engine, 7.0 V or more is
needed.
cranking
Which pattern is indicated?
Pattern 1 Diagnostic procedure:
1. TEST THE BATTERY .
2. Check the battery cables and connections.
Pattern 2 The battery is OK. Go to step 9 (diagnosis by parameter (ECT SENSOR 1)).
9. On-board snapshot or snapshot check (ECT SENSOR 1):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select ECT SENSOR 1 and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the ECT
SENSOR 1 pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
ECT SENSOR 1 high when
When ECT SENSOR 1 indicates about
144 Β°F (80 Β°C) or more when the engine
is cold (engine temp low), ECT sensor 1
may be stuck high. ECT compensation
is not applied after the engine is
Pattern
1
warmed up, it is not necessary to check
the ECT sensor (not a faulty part)
cranking
Pattern
2
If actual engine temp is nearly same as
the temp detected by ECT sensor 1
ECT SENSOR 1 normal when cranking
when cranking, ECT sensor 1 is normal.
cranking
Which pattern is indicated?
Pattern 1 Check for a short in ECT sensor 1 circuit and failure in ECT sensor 1.
Pattern 2 ECT sensor 1 is OK. Go to step 10 (diagnosis by parameter (MAP SENSOR)).
10. On-board snapshot or snapshot check (MAP SENSOR):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the MAP sensor and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the MAP
SENSOR pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
MAP Sensor detects no change of pressure when
When MAP SENSOR detects no
change of pressure when cranking,
the pressure measurement port may
be clogged. The PCM decides basic
duration time of fuel injection from
engine speed and MAP sensor signal
when cranking.
Pattern
1
cranking
Normal when MAP sensor detects vacuum when
When MAP Sensor detects vacuum
while cranking, the condition is
normal, without any clogging.
Pattern
2
cranking
Which pattern is indicated?
Pattern 1 Check the port of MAP sensor for clogging. If port is OK, SUBSTITUTE A KNOWN-
GOOD MAP SENSOR . Also check for clogging in the exhaust system.
Pattern 2 (Reproducible failure) The MAP sensor is OK. Go to step 11 (diagnosis by parameter
(MAF SENSOR)).
Pattern 2 (Intermittent failure) The MAP sensor is OK. Go to step 12 (diagnosis by parameter
(CMP NO PULSE)).
11. Snapshot check (MAF SENSOR):
ο‘
1. Select the Hard to Start Engine in the snapshot with the HDS.
ο‘
2. Select the MAF sensor and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the MAF
SENSOR pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Poor connection of MAF
Complete combustion stall: When MAF
SENSOR indicates "0" 1 -2 sec before
ENGINE SPEED becomes 0 rpm, or
when "0" is shown like noise, poor
connection of MAF SENSOR
Pattern
1
connector may exist.
sensor
MAF sensor output
When MAF SENSOR shows "0" when
cranking or after start, the MAF
sensor's measurement point or a poor
connection may exist.
Pattern
2
incorrect
When MAF SENSOR output compares
with ENGINE SPEED when cranking
or after start, MAF SENSOR is normal.
Pattern
3
MAF sensor: Normal
Normal
Which pattern is indicated?
Pattern 1 and 2 Check for loose terminal or poor connection at the MAF sensor. If the terminals and
connections are OK, SUBSTITUTE A KNOWN-GOOD MAF SENSOR .
Pattern 3 The MAF sensor is OK. Go to step 12 (diagnosis by parameter (CMP NO PULSE)).
12. On-board snapshot or snapshot check (CMP NO PULSE):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the CMP NO PULSE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CMP NO
PULSE pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
CMP NO PULSE count increases when
When CMP NO PULSE count
increases when cranking, no CMP
pulse is received. If the CMP pulse is
not received, the PCM cannot detect
the cylinder to be ignited and engine
is unable to start.
Pattern
1
cranking
The CMP NO PULSE indicates the pulse is
It is normal, when CMP NO PULSE
count does not increase and pulse is
received when cranking.
Pattern
2
normal
Which pattern is indicated?
Pattern 1 DO THE TROUBLESHOOTING PROCEDURE FOR DTC P0365 . If the CMP NO
PULSE count reaches the threshold, DTC P0365 will set. Check for poor connections and loose
terminals at the CMP sensor.
Pattern 2 Go to step 13 (diagnosis by parameter (CMP NOISE)).
13. On-board snapshot or snapshot check (CMP NOISE):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the CMP NOISE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CMP
NOISE pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
CMP NOISE count increases when
When CMP NOISE count increases
when cranking, there is noise in the
CMP signal. When CMP signal has
noise, the PCM cannot detect the
cylinder to be ignited and engine is
unable to start.
Pattern
1
cranking
The CMP NOISE indicates the pulse is
It is normal, when CMP NOISE
count does not increase when
cranking.
Pattern
2
normal
Which pattern is indicated?
Pattern 1 DO THE TROUBLESHOOTING PROCEDURE FOR DTC P0369 . If the CMP
NOISE count reaches the threshold, DTC P0369 will set. Check for poor connections and loose
terminals at the CMP sensor.
Pattern 2 The CMP sensor is OK. Go to step 14 (diagnosis by parameter (CKP NO PULSE)).
14. On-board snapshot or snapshot check (CKP NO PULSE):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the CKP NO PULSE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CKP NO
PULSE pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
CKP NO PULSE counts up when
Additional remarks
When the CKP NO PULSE
count increases when cranking,
the PCM cannot receive correct
CKP pulse.
Pattern
1
cranking
The CKP NO PULSE indicates the pulse is
It is normal, when the CKP NO
PULSE count does not increase
and pulse is received when
cranking.
Pattern
2
normal
Which pattern is indicated?
Pattern 1 DO THE TROUBLESHOOTING PROCEDURE FOR DTC P0335 . If the CKP NO
PULSE count reaches the threshold, DTC P0335 will set. Check for poor connections and loose
terminals at the CKP sensor.
Pattern 2 Go to step 15 (diagnosis by parameter (CKP NOISE)).
15. On-board snapshot or snapshot check (CKP NOISE):
NOTE:
Use the on-board snapshot in case of intermittent failure, or use the
snapshot in case of reproducible failure.
ο‘
ο‘
1. Select the Hard to Start Engine in the on-board snapshot or snapshot with the HDS.
2. Select the CKP NOISE and ENGINE SPEED in the configuration list.
Check the recorded snapshot parameters while the engine is cranking, then compare the CKP
NOISE pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
CKP NOISE counts up when
Additional remarks
When the CKP NOISE count
increases during cranking, there is
noises in the CKP signal. When
CKP signal has, noise, the PCM
cannot detect the cylinder to be
ignited and engine is unable to start.
Pattern
1
cranking
Normal when CKP NOISE does not count up when
It is normal, when CKP NOISE
count does not increase when
cranking.
Pattern
2
cranking
Which pattern is indicated?
Pattern 1 DO THE TROUBLESHOOTING PROCEDURE FOR DTC P0339 . If the CKP
NOISE count reaches the threshold, DTC P0339 will set. Check for poor connections and loose
terminals at the CKP sensor, and also check for aftermarket accessories.
Pattern 2 (Reproducible failure) The CKP sensor is OK. Go to step 16 (diagnosis by parameter
(VTEC PRES SW)).
Pattern 2 (Intermittent failure) The CKP sensor is OK. Go to step 17 (diagnosis by parameter
(Engine Stall in the on-board snapshot)).
16. Snapshot check (VTEC PRES SW):
1. Check the parameter(s) below with the HDS when the engine is cranking.
ο‘
Signal
Threshold Current conditions
Values Unit Values Unit
VTEC PRES SW OFF
Do the current condition(s) match the threshold?
YES : SUBSTITUTE A KNOWN-GOOD ROCKER ARM OIL CONTROL VALVE . If the valve is
OK, replace the oil pump See ENGINE OIL PUMP OVERHAUL or ENGINE OIL PUMP REMOVAL
AND INSTALLATION .
NO : Go to step 20 (fuel system troubleshooting).
17. On-board snapshot check (Engine Stall):
ο‘
1. Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.
Engine stall in the on-board snapshot recorded?
YES : Go to step 18 (diagnosis by parameter (ST FUEL TRIM)).
NO : Go to step 20 (fuel system troubleshooting).
18. On-board snapshot check (ST FUEL TRIM):
ο‘
1. Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.
2. Select the ST FUEL TRIM and ENGINE SPEED in the configuration list.
ο‘
Check the recorded snapshot parameters when the Engine Stalls, then compare the ST FUEL TRIM
pattern from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Engine stalls while ST FUEL TRIM value
When the engine stalls while
ST FUEL TRIM value
increasing, a failure may
exist in the fuel system.
Pattern
1
increasing
Normal when the engine stalls when ST FUEL TRIM is
around 1.0 (center
The fuel is normal when the
engine stalled with ST FUEL
TRIM around 1.0 (center
value) until the engine stall.
Pattern
2
value)
Which pattern is indicated?
Pattern 1 Diagnostic procedure:
1. Check fuel pump operation sound.
2. GO TO THE FUEL PRESSURE TEST .
3. GO TO THE FUEL PUMP CIRCUIT TROUBLESHOOTING .
4. TEST THE PGM-FI MAIN RELAY .
5. TEST PGM-FI MAIN RELAY 2 .
6. Check for the following fuses:
ο¬
No. A21 (15 A) fuse (in the under-hood fuse/relay box)
No. B4 (15 A) fuse (in the under-dash fuse/relay box)
ο¬
Pattern 2 Go to step 19 (diagnosis by parameter (MISFIRE)).
19. On-board snapshot check (MISFIRE):
ο‘
1. Check for a record of Engine Stall 2 in the on-board snapshot with the HDS.
2. Select the MISFIRE and ENGINE SPEED in the configuration list.
ο‘
Check the recorded snapshot parameters when the engine stalls, then compare the MISFIRE pattern
from the chart, and determine the problem.
Pattern
Symptom (Diagnosis by parameter)
Additional remarks
Engine stalls after MISFIRE counts
When engine stalls after the
MISFIRE count increases, the
engine stall may be caused by
misfire. Also the misfire may be
caused by a loss of compression,
faulty ignition system, faulty fuel
system, etc.
Pattern
1
increase
Normal when engine stalls with MISFIRE count
remaining
If the MISFIRE count remains
constant when the engine stalls, the
stall was not caused by a misfire.
Pattern
2
constant
Which pattern is indicated?
Pattern 1 Do the troubleshooting procedure for DTC P0300: Random Misfire Detected; DTC
P0301: No. 1 Cylinder Misfire Detected; DTC P0302: No. 2 Cylinder Misfire Detected; DTC
P0303: No. 3 Cylinder Misfire Detected; DTC P0304: No. 4 Cylinder Misfire Detected .
Pattern 2 Go to step 20 (fuel system troubleshooting).
20. Fuel pressure check:
ο‘
1. DO THE FUEL PRESSURE TEST .
Is the fuel pressure OK?
YES : Go to step 21 (ignition system troubleshooting).
NO : Check the following:
ο¬
ο¬
FUEL PUMP CIRCUIT
Fuel pressure regulator See FUEL TANK UNIT DISASSEMBLY AND REASSEMBLY
or FUEL TANK UNIT REMOVAL AND INSTALLATION
ο¬
Fuel filter See FUEL TANK UNIT DISASSEMBLY AND REASSEMBLY or FUEL
TANK UNIT REMOVAL AND INSTALLATION
21. Spark plug visual check:
ο‘
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. REMOVE THE SPARK PLUGS .
3. Check the conditions of the spark plug electrode.
NOTE:
Make sure the plugs are genuine parts.
Is the electrode damaged or wet?
YES (wet) : Check the following conditions. If they are OK, go to step 22.
ο¬
In very cold conditions, multiple very short trips can cause the spark plug to foul. If this is the case,
drive the vehicle a longer distance and recheck.
ο¬
Incorrect or poor quality fuel can cause a wet spark plug. Replace the fuel and recheck.
YES (damaged) : REPLACE THE DAMAGED SPARK PLUGS , determine the cause of the
spark plug damage.
NO : Go to step 22.
22. Determine possible failure area (ignition system, others):
ο‘
1. Turn the ignition switch to LOCK (0).
ο‘
2. Select ALL INJECTORS in the INSPECTION MENU with the HDS, and stop fuel injection
from injector.
ο‘
ο‘
3. Fit spark plug to the ignition coil and ground it to the engine.
4. Crank the engine and watch for spark at the spark plug.
Is there spark?
YES : The ignition system is OK. Select PCM reset in the INSPECTION MENU to cancel ALL
INJECTORS with the HDS, then go to step 24 (engine compression troubleshooting).
NO : Go to step 23.
23. Ignition coil power circuit check:
ο‘
1. Disconnect the following connector(s).
Ignition coil(s) 3P connector from the problem cylinder
2. Remove the ignition coil relay (A) from the under-hood fuse/relay box.
ο‘
Fig. 32: Identifying Ignition Coil Relay
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
3. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Ignition coil 3P connector: disconnected
Ignition coil relay: disconnected
Test circuit IG1(COIL), IG COIL RLY OUT
Test point 1 Ignition coil 3P connector No. 1 (RED)
Test point 2 Ignition coil relay 4P socket No. 2 (Under-hood fuse/relay box)
Fig. 33: Checking For Continuity Between Test Points 1 And 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The ignition coil power circuit is OK. REPLACE THE IGNITION COIL(S) .
NO : Repair an open in the IG1(COIL)/IG COIL RLY OUT wire between the ignition coil relay
and the ignition coil.
24. Engine compression check:
1. DO AN ENGINE COMPRESSION INSPECTION .
ο‘
NOTE:
When removing the spark plugs, make sure the plugs are genuine parts.
Is engine compression OK?
YES : Go to step 25 (EVAP canister purge valve check).
NO : Repair the cause of low compression.
25. EVAP canister purge valve check:
ο‘
1. Turn the ignition switch to LOCK (0).
2. Disconnect the following connector.
ο‘
EVAP canister purge valve 2P connector
ο‘
3. Disconnect the vacuum hose (A) from the EVAP canister purge valve (B) in the engine
compartment, and connect a vacuum pump/gauge, 0-30 inHg, to the purge valve.
Fig. 34: Identifying Vacuum Hose And EVAP Canister Purge Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.
ο‘
4. Start the engine.
Is there vacuum?
YES : REPLACE THE EVAP CANISTER PURGE VALVE .
NO (Reproducible failure) : Go to step 26 (fuse check).
NO (Intermittent failure) : Go to step 27 (relay check).
26. Fuse check:
1. Check the following fuses.
ο‘
Fuse No. A17 (15 A) to the ignition coil relay
Fuse No. A18 (15 A) to the PGM-FI subrelay
Fuse No. A23 (15 A) to PGM-FI main relay 1
Location Under-hood fuse/relay box
Fuse No. B4 (15 A) to PGM-FI main relay 2
Location Under-dash fuse/relay box
Are the fuses OK?
YES : The fuses are OK. Go to step 27 (relay check).
NO : Replace the blown fuse(s).
27. Relay check:
1. TEST THE FOLLOWING RELAYS :
ο‘
NOTE:
In case the failure is not reproduced, the following relays may have
intermittent failure.
ο¬
ο¬
ο¬
ο¬
PGM-FI main relay 2
Ignition coil relay
PGM-FI main relay 1
PGM-FI subrelay
Are the relays OK?
YES : Go to the Diagnostic Interview See FUEL AND EMISSIONS SYSTEMS
DIAGNOSTIC INTERVIEW - ENGINE STALLS or FUEL AND EMISSIONS SYSTEMS
DIAGNOSTIC INTERVIEW - ENGINE WILL NOT START, ENGINE STARTS BUT
STALLS IMMEDIATELY, OR ENGINE IS HARD TO START.
NO : Replace the damaged relays.
IDLE SPEED INSPECTION
INSPECTION
1. HDS DLC - Connection
1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the
dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC
circuit troubleshooting.
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
