Technical data

Electrical Equipment

chap. 6

6-14

Release 00 2002-09

Atlantic 500

INJECTOR CHECK

With motor off:

• Disconnect the two-way connector (1) (black) and

take measurements (on the terminals on the

injector side).

• With a multimeter (scale x 100 Ω), measure the

resistance between the injector terminals.

Standard value: 14.5 ± 10%

ΩΩ

Ω to 25°C

If the resistance is infinite (∞) or less than the

prescribed value, the injector (2) must be

replaced.

COOLANT THERMISTOR FUNCTION CHECK

• Remove the thermistor (1), see (COOLANT

THERMISTOR REMOVAL).

• Connect a multimeter (2) (set in ohm metre mode)

as illustrated in the diagram, to the thermistor (1).

• Immerse the thermistor (1) in a container (3)

containing coolant.

• In the same container immerse a thermometer (4)

with 0 -150 °C gauge (32 -302 °F).

• Place the container on a hotplate (5) and slowly

heat the liquid.

• Check the temperature indicated on the

thermometer (4) and the value of the thermistor

(1) indicated on the multimeter.

Verify that the values vary in relation to the temperatu-

re as indicated.

NOTE If the standard values do not change as the

temperature changes, or change too much from those

given in the table, replace the thermistor (1).

• Repeat these operations also for the other

thermistor.

Temperature °CA1 - A2 (Ω)

B1 - B2 (Ω)

60 557 ±10% 576 ±10%

90 196 ±10% 231 ±10%

120 80.6 ±10% 105 ±10%