Honda Civic Service Manual: Fuel Pump/Fuel Gauge Sending Unit Removal and Installation (R18Z1)
Removal
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1.
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Remove the fuel fill cap to relieve the pressure in the fuel
tank.
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NOTE: For specific operations, refer to the user's manual that
came with the Honda Diagnostic System (HDS). Make sure the HDS is
loaded with the latest software.
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1.
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Connect the HDS to the data link connector (DLC) (A) located
under the driver's side of the dashboard.
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2.
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Turn the ignition switch to ON (II).
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3.
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Make sure the HDS communicates with the vehicle. If it does not
communicate, go to the DLC circuit troubleshooting.
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1.
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Turn the ignition switch to ON (II).
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2.
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From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then
start the engine, and let it idle until it stalls.
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NOTE:
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Do not allow the engine to idle above 1,000 rpm
or the ECM/PCM will continue to operate the fuel
pump.
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Pending or Confirmed DTC may be set during this
procedure. Check for DTCs, and clear them as needed.
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3.
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Turn the ignition switch to LOCK (0).
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4. |
Battery Terminal - Disconnection |
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1.
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Make sure the ignition switch is in LOCK (0).
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2.
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Disconnect and isolate the negative cable and battery sensor
(A) from the battery.
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NOTE: Always disconnect the negative side first.
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3.
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Disconnect the positive cable (B) from the battery.
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5. |
Fuel Pressure - Relieving |
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1.
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Remove the quick-connect fitting cover (A).
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2.
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Check the fuel quick-connect fitting for dirt, and clean it if
needed.
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3.
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Place a rag or shop towel over the quick-connect fitting (A).
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4.
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Disconnect the quick-connect fitting: Hold the connector (A)
with one hand, and squeeze the retainer tabs (B) with the other
hand to release them from the locking tabs (C). Pull the connector
off.
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NOTE:
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Be careful not to damage the line (D) or other
parts.
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Do not use tools.
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If the connector does not move, keep the retainer
tabs pressed down, and alternately pull and push
the connector until it comes off easily.
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Do not remove the retainer from the line; once
removed, the retainer must be replaced with a new
one.
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1.
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Remove the bolt (A) securing the rear seat cushion (B).
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2.
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While pushing down the rear seat cushion (A), pull the seat hook
handles (B) to release the hooks (C).
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3.
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Remove the rear seat cushion.
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1.
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Fold down the seat-back(s).
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2.
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Remove the front area of the trunk floor cover (A).
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3.
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Remove the trunk floor cover (A).
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8. |
Right Rear Seat-Back - Split Fold Down |
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1.
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Remove the right rear seat-back (A).
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9. |
Center Pivot Bracket - Split Fold Down |
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1.
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Remove the center pivot bracket (A).
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2.
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If necessary, remove the bushing (B).
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10. |
Left Rear Seat-Back - Split Fold Down |
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1.
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Remove the bolt (A) securing the left rear seat-back (B).
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2.
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Extend the center seat belt (A), then remove the left rear seat-back
(B).
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11. |
Rear Floor Upper Cross-Member |
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1.
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Remove the rear floor upper cross-member (A).
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12. |
Fuel Gauge Sending Unit Access Panel |
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1.
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Remove the access panel (A) from the floor.
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2.
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Disconnect the connector (B).
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1.
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Using the special tool, loosen the locknut (A).
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2.
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Remove the locknut (A).
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3.
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Remove the fuel tank unit (B).
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14. |
Fuel Gauge Sending Unit |
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1.
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Remove the fuel level sensor (fuel gauge sending unit) (A) from
the fuel tank unit (B).
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2.
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Check these items before installing the fuel tank unit:
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When connecting the wire harness, make sure the
connection is secure and the connector (C) is firmly
locked into place.
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When installing the fuel gauge sending unit,
make sure the connection is secure. Be careful not
to bend or twist it excessively.
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Installation
1. |
Fuel Gauge Sending Unit |
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1.
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Install the fuel level sensor (fuel gauge sending unit) (A) to
the fuel tank unit (B).
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1.
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Insert the fuel tank unit (A) into the fuel tank with a new O-ring
(B).
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2.
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Align the marks (A) on the fuel tank and the fuel tank unit,
then insert the fuel tank unit into the fuel tank.
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NOTE: To prevent a fuel leak, check the base gasket, visually
or by hand, to make sure it is not pinched.
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3.
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Tighten a new locknut (A) by hand holding the fuel tank unit
vertically.
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NOTE: Before tightening, align the mark (B) on the locknut to
the start of the thread (C).
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4.
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Using the special tool, tighten the locknut to the specified
torque.
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NOTE:
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After tightening, make sure the marks (A) are
still aligned.
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After installation, check the base gasket, visually
or by hand, to make sure it is not pinched.
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5.
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Reconnect the quick-connect fittings (B).
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3. |
Battery Terminal - Reconnection |
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NOTE: If the battery performs abnormally, test the battery.
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1.
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Clean the battery terminals.
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2.
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Connect the positive cable (A) to the battery.
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NOTE: Always connect the positive side first.
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3.
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Connect the negative cable and battery sensor (B) to the battery.
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4.
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Apply multipurpose grease to the terminals to prevent corrosion.
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1.
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Connect the HDS to the data link connector (DLC) (A) located
under the driver's side of the dashboard.
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2.
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Turn the ignition switch to ON (II).
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3.
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Make sure the HDS communicates with the vehicle. If it does not
communicate, go to the DLC circuit troubleshooting.
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1.
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From the INSPECTION MENU of the HDS, select Fuel Pump ON.
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NOTE: Pending or Confirmed DTC may be set during this procedure.
Check for DTCs, and clear them as needed.
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2.
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Turn the ignition switch to LOCK (0).
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6. |
Fuel Gauge Sending Unit Access Panel |
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1.
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Connect the connector (A).
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2.
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Install the access panel (B) to the floor.
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1.
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Turn the ignition switch to ON (II) (but do not operate the starter
motor). The fuel pump runs for about 2 seconds, and fuel pressure
rises. Repeat this two or three times, then make sure there are
no fuel leaks.
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8. |
Rear Floor Upper Cross-Member |
22mm
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1.
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Install the rear floor upper cross-member (A).
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9. |
Left Rear Seat-Back - Split Fold Down |
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1.
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Extend the center seat belt (A), then install the pivot shaft
(B) to the center pivot bracket (C).
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2.
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Install the left rear seat-back (A).
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10. |
Center Pivot Bracket - Split Fold Down |
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1.
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If necessary, install the bushing (A).
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2.
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Install the center pivot bracket (B).
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11. |
Right Rear Seat-Back - Split Fold Down |
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1.
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Install the right rear seat-back (A).
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1.
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Install the fuel fill cap.
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1.
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Install the trunk floor cover (A).
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2.
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Install the front area of the trunk floor cover (A).
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3.
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Raise the seat-back(s).
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1.
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Install the hooks (A) to the rear seat cushion clips (B).
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2.
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Install the bolt (A) securing the rear seat cushion (B).
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The fuel line/quick-connect fittings (A and B) connect the fuel feed line (C)
to the fuel feed hose (D), the fuel feed hose to the fuel line (E), the fuel line
(F) to the fuel tank unit (G). When ...
1.
Vehicle Lift
1.
Raise the vehicle on a lift, and make sure it is securely supported.
2. ...
See also:
Honda Civic Owners Manual. Front Seat Heaters
The ignition switch must be in ON (w*1 to use
the seat heaters
Press the seat heater button:
Once - The HI setting (three indicators on)
Twice - The MID setting (two indicators on)
Three times - The LO setting (one indicator on)
Four times - The OFF setting (no indicators on)
*1: Mode ...