Honda HR-V: Troubleshooting
FUEL PUMP CIRCUIT TROUBLESHOOTING
If you suspect a problem with the fuel pump, check that the fuel pump actually runs; when it is on, you will hear some noise if you listen to the fuel fill port with the fuel fill cap removed. The fuel pump should run for 2 seconds when the vehicle is turned to ON mode. If the fuel pump does not make noise, check as follows:
1. Under-dash fuse/relay box internal circuit check.
- Turn the vehicle to the OFF (LOCK) mode.
- Remove PGM-FI main relay 2 (A) from the under-dash fuse/relay box.
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- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Go to step 3.
NO
Go to step 2.
2. Open wire check (FI MAIN RLY OUT line).
- Turn the vehicle to the OFF (LOCK) mode.
- Remove PGM-FI main relay 1 (A) from the under-hood fuse/relay box.
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- Disconnect the following connector.
Under-dash fuse/relay box connector Q (40P)
- Connect terminals A and B with a jumper wire.
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- Check for continuity between test points 1 and 2.
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Is there continuity?
YES
Replace the under-dash fuse/relay box.
NO
Repair an open in the FI MAIN RLY OUT wire between PGM-FI main relay 1 and the under-dash fuse/relay box.
3. Open wire check (IG1 FUEL PUMP) line).
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Go to step 4.
NO
- Check the No. C32 (15 A) fuse in the under-dash fuse/relay box.
- If needed, replace the under-dash fuse/relay box.
4. Open wire check (FUEL PUMP RLY CL- line).
- Turn the vehicle to the OFF (LOCK) mode.
- Jump the SCS line with the HDS.
SCS Short
- Disconnect the following connector.
PCM connector A (51P)
- Connect terminals A and B with a jumper wire.
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- Check for continuity between test points 1 and 2.
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Is there continuity?
YES
The FUEL PUMP RLY CL- wire is OK. Go to step 5.
NO
Repair an open in the FUEL PUMP RLY CL- wire between PGM-FI main relay 2 and the PCM (A42).
5. Determine possible failure area (PGM-FI main relay 2, others).
- Remove the jumper wire from the PGM-FI main relay 4P socket.
- Reinstall PGM-FI main relay 2.
- Connect terminals A and B with a jumper wire.
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- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Go to step 6.
NO
Replace PGM-FI main relay 2.
6. PCM operation check.
- Turn the vehicle to the OFF (LOCK) mode.
- Remove the jumper wire from PCM connector A (51P).
- Reconnect PCM connector A (51P).
- Exit the SCS mode with the HDS.
SCS Open
- Turn the vehicle to the ON mode, and measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away and the PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the PCM was substituted, replace the original PCM.
NO
Go to step 7.
7. Determine possible failure area (FUEL PUMP RLY OUT line, GND line).
- Turn the vehicle to the OFF (LOCK) mode.
- Reinstall PGM-FI main relay 2.
- Disconnect the following connector.
Fuel tank unit 4P connector
- Turn the vehicle to the ON mode, and measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Go to step 10.
NO
Go to step 8.
8. Open wire check (FUEL PUMP RLY OUT line).
- Turn the vehicle to the OFF (LOCK) mode.
- Remove PGM-FI main relay 2 (A) from the under-dash fuse/relay box.
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- Connect terminals A and B with a jumper wire.
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- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
The FUEL PUMP RLY OUT wire is OK. Replace PGM-FI main relay 2.
NO
Go to step 9.
9. Open wire check (FUEL PUMP RLY OUT line) 2.
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
Repair an open in the FUEL PUMP RLY OUT wire between the under-dash fuse/relay box and the fuel tank unit.
NO
The FUEL PUMP RLY OUT wire is OK. Replace the under-dash fuse/relay box.
10.Open wire check (GND line).
- Turn the vehicle to the OFF (LOCK) mode.
- Check for continuity between test points 1 and 2.
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Is there continuity?
YES
The GND wire is OK. Replace the fuel pump - Refer to: Fuel Tank Unit Removal and Installation (2WD), or Fuel Tank Unit Removal and Installation (AWD).
NO
Repair an open in the GND wire between the fuel tank unit 4P connector and G502.
READ NEXT:
Fuel Pressure Relieving
Procedure
NOTE:
Before disconnecting fuel lines or hoses, relieve pressure from the
system by disabling the fuel pump and
disconnecting the fuel line/quick connect fitting in the engine compartme
Fuel Tank Unit Disassembly and Reassembly (2WD)
Disassembly/Reassembly
The fuel filter should be replaced whenever the fuel pressure drops below the
specified value, after making sure
that the fuel pump and the fuel pressure regulator are OK.
NOTE
SEE MORE:
DTC Troubleshooting B00D5-14: Open or Short to Ground in the Front
Passenger's Airbag Cutoff Indicator (KA/KC)
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify
that all the required components were replaced with new components of the
correct part number,
and that they were properly installed.
Before doing this troubleshooting procedure, rev
Inclination Sensor Initial Learn Procedure (CVT)
Procedure
NOTE:
The inclination sensor initial learn procedure must be done with the HDS
when:
The PCM is replaced.
The inclination sensor is removed/installed, or replaced.
The inclination sensor malfunction occurs.
There are two procedures depending on a work area:
On a level grou
