Kia Optima: Inspection
[Fuel pump]
1. |
Turn the ignition switch OFF, and then remove battery
(-) cable.
|
2. |
Remove the fuel pump assembly. |
3. |
Check motor operation by fuel pump connector (A)
connecting power (No.4) and ground (No.5).

Pin No.
|
Description
|
1
|
Fuel sender ground
|
2
|
-
|
3
|
Fuel sender signal
|
4
|
Fuel pump motor (+)
|
5
|
Fuel pump motor ground
|
|
[Fuel sender]
1. |
Turn the ignition switch OFF, and then remove battery
(-) cable.
|
2. |
Remove the fuel pump assembly. |
3. |
Using an ohmmeter, measure the resistance between
terminals 1 and 3 of sender connector (A) at each float level. 
Pin No.
|
Description
|
1
|
Fuel sender ground
|
2
|
-
|
3
|
Fuel sender signal
|
4
|
Fuel pump motor (+)
|
5
|
Fuel pump motor ground
|
|
4. |
Also check that the resistance changes smoothly when
the float is moved from "E" to "F".
Position
|
Resistance(Ω)
|
Capacity (ℓ)
|
E
|
198~205
|
5
|
Warning lamp
|
168~172
|
8.5
|
1/2
|
65~67
|
37.5
|
Sender (F)
|
7~9
|
68
|
|
1.
Release the residual pressure in fuel line (Refer
to “Release Residual Pressure in Fuel Line” in this group).
2.
Remove the fuel pump service cover (A) in the ...
See also:
Outside rearview mirror
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The mirrors can be adjusted remotely with the remote switch. The ...
Description and Operation
Description
Tread Lamp
-
Tire Under Inflation / Leak Warning.
1.
Turn on condition
A.
When tire pressure is
below allowed threshold
...
Electrical System
1.
Be sure to disconnect the
battery cable from the negative (-) terminal of the battery.
2.
Never pull on the wires
when disconnecting connectors.
...