2003 DODGE RAM ignition

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Page 425 of 2895

DODGE RAM 2003  Service Repair Manual ²a faulty or improperly adjusted switch that
allows a lamp to stay on. Refer to Ignition-Off Draw
Test in 8, Battery for more information.
INSPECTION
The PCM (Powertrain Control Module), or ECM
(Dies

Page 433 of 2895

DODGE RAM 2003  Service Repair Manual STARTING
TABLE OF CONTENTS
page page
STARTING
DESCRIPTION.........................28
OPERATION...........................28
DIAGNOSIS AND TESTING - STARTING
SYSTEM............................29
SPECIF

Page 434 of 2895

DODGE RAM 2003  Service Repair Manual open switch prevents the starter relay from being
energized and the starter motor from operating
unless the automatic transmission gear selector is in
the Neutral or Park positions.
When the starter r

Page 435 of 2895

DODGE RAM 2003  Service Repair Manual Starting System Diagnosis
CONDITION POSSIBLE CAUSE CORRECTION
STARTER ENGAGES,
SPINS OUT BEFORE
ENGINE STARTS.1. Starter ring gear faulty. 1. Refer to Starter Motor Removal and Installation.
Remove st

Page 436 of 2895

DODGE RAM 2003  Service Repair Manual with automatic transmission, place gearshift selector
lever in Park position.
(4) Verify that all lamps and accessories are
turned off.
(5) To prevent a gasoline engine from starting,
remove Automatic

Page 437 of 2895

DODGE RAM 2003  Service Repair Manual (3) Connect voltmeter to measure between battery
positive terminal post and starter solenoid battery
terminal stud (Fig. 4). Rotate and hold ignition
switch in Start position. Observe voltmeter. If re

Page 438 of 2895

DODGE RAM 2003  Service Repair Manual (6) If equipped with dual battery system (certain
diesel equipped models), connect positive lead of volt-
meter to positive battery cable clamp on battery
located on left side of vehicle. Connect nega

Page 443 of 2895

DODGE RAM 2003  Service Repair Manual STARTER MOTOR RELAY
DESCRIPTION
The starter relay is an electromechanical device
that switches battery current to the pull-in coil of the
starter solenoid when ignition switch is turned to
Start posit