2003 DODGE RAM sensor

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Page 530 of 2895

DODGE RAM 2003  Service Repair Manual air core magnetic unit that receives battery current
on the instrument cluster electronic circuit board
through the fused ignition switch output (run-start)
circuit whenever the ignition switch is in

Page 531 of 2895

DODGE RAM 2003  Service Repair Manual onds, the gauge needle will return to the left end of
the gauge scale.
²Actuator Test- Each time the cluster is put
through the actuator test, the tachometer needle will
be swept to several calibrati

Page 535 of 2895

DODGE RAM 2003  Service Repair Manual WAIT-TO-START INDICATOR
DESCRIPTION
A wait-to-start indicator is only found in the
instrument clusters for vehicles equipped with an
optional diesel engine. The wait-to-start indicator is
located near

Page 537 of 2895

DODGE RAM 2003  Service Repair Manual ²Bulb Test- Each time the ignition switch is
turned to the On position the water-in-fuel indicator
is illuminated for about two seconds as a bulb test.
²Water-In-Fuel Lamp-On Message- Each time
the

Page 544 of 2895

DODGE RAM 2003  Service Repair Manual STANDARD PROCEDURE
SAFETY PRECAUTIONS
WARNING: EYE PROTECTION SHOULD BE USED
WHEN SERVICING GLASS COMPONENTS. PER-
SONAL INJURY CAN RESULT.
CAUTION: Do not touch the glass of halogen bulbs
with finger

Page 545 of 2895

DODGE RAM 2003  Service Repair Manual OPERATION
The backup lamp switch controls the flow of bat-
tery voltage to the backup lamp bulbs through an
output on the back-up lamp feed circuit. The switch
plunger is mechanically actuated by the

Page 549 of 2895

DODGE RAM 2003  Service Repair Manual (ISO) micro relay (Fig. 7). Relays conforming to the
ISO specifications have common physical dimensions,
current capacities, terminal patterns, and terminal
functions. The relay is contained within a

Page 550 of 2895

DODGE RAM 2003  Service Repair Manual (3) Resistance between terminals 85 and 86 (elec-
tromagnet) should be 75   8 ohms. If OK, go to Step
4. If not OK, replace the faulty relay.
(4) Connect a battery to terminals 85 and 86.
There shoul