1999 DODGE RAM bulb
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Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector melted ........ A ........... (1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Inoperative ............. A ........... ( 2) Require repair or
replacement.
Missing ................. C ............ Require replacement.
Out of adjustment ....... B ............. Require adjustment.
Sound quality poor ...... A .. Require repair or replacement.
Further inspection required.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Wire lead burned ........ A .. Require repair or replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation.
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IGNITION SWITCHES
See SWITCHES.
INDICATOR LIGHTS
INDICATOR LIGHT INSPECTION \
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Condition Code Procedure
Does not come on during
bulb check ............. .. ......... ( 1) Further inspection
required.
Fails to function properly
during test mode ....... .. ......... ( 1) Further inspection
required.
On constantly ........... .. ......... ( 1) Further inspection
required.
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On intermittently ....... .. ......... (1) Further inspection
required.
( 1) - See service manual for further information.
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KEYLESS ENTRY KEYPADS AND TRANSMITTERS
KEYLESS ENTRY KEYPAD AND TRANSMITTER INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Malfunctioning .......... A ........... ( 2) Require repair or
replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Wire lead burned ........ A .. Require repair or replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Malfunctioning includes inoperative, intermittent
operation, or failure to perform all functions.
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KEYLESS ENTRY TRANSMITTERS
See KEYLESS ENTRY KEYPADS AND TRANSMITTERS .
LEDS
See BULBS, SEALED BEAMS AND LEDS .
Page 577 of 1691
performance ............ 2 ........ (1) Suggest replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
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RELAYS
RELAY INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Housing broken .......... A ........... Require replacement.
Housing cracked ......... 2 ........... Suggest replacement.
Inoperative ............. A ........ ( 1) Require replacement.
Missing ................. C ........... Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 2) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
( 1) - Inoperative includes intermittent operation or out of OEM
specification.
( 2) - Determine cause and correct prior to repair or
replacement of part.
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SEALED BEAMS
See BULBS, SEALED BEAMS AND LEDS .
Page 616 of 1691
If equipped, the EMR light (some models may use a reminder
flag) reminds vehicle operator that an emission system maintenance is
required. This indicator is activated after a predetermined
time/mileage.
When performing a smog check inspection, ensure EMR indicator
is not activated. On models using an EMR light, light should glow when
ignition switch is turned to ON position and should turn off when
engine is running.
If an EMR flag is present or an EMR light stays on with
engine running, fail vehicle and service or replace applicable
emission-related components. To reset an EMR indicator, refer to
appropriate MAINTENANCE REMINDER LIGHTS in the MAINTENANCE section.
MALFUNCTION INDICATOR LIGHT (MIL)
The Malfunction Indicator Light (MIL) is used to alert
vehicle operator that the computerized engine control system has
detected a malfunction (when it stays on all the time with engine
running). On some models, the MIL may also be used to display trouble
codes.
As a bulb and system check, malfunction indicator light will
glow when ignition switch is turned to ON position and engine is not
running. When engine is started, light should go out.
Page 854 of 1691
IN STR UM EN T P A N EL - A N ALO G
1999 D odge P ic ku p R 1500
1999 ACCESSORIES & EQUIPMENT
CHRY - Analog Instrument Panels
Ram Pickup, Ram Van & Ram Wagon
DESCRIPTION & OPERATION
INSTRUMENT CLUSTER
All instrument cluster gauges are air core magnetic type.
Tachometer is optional. All gauges use data transferred on Chrysler
Collision Detection (CCD) bus. Instrument cluster incorporates a
Vacuum Fluorescent Display (VFD) for odometer display.
Brake warning light illuminates when ignition is on and
parking brake is applied. Brake warning light also illuminates if
brake hydraulic system failure occurs during service brake
application. Brake warning light bulb test occurs when ignition switch
is in START position.
Oil pressure warning light illuminates when engine oil
pressure is not sufficient to open oil pressure sending unit switch.
Oil pressure warning light bulb test occurs with ignition switch in
RUN position.
All instrument clusters include these analog gauges:
* Coolant Temperature Gauge
* Fuel Gauge
* Oil Pressure Gauge
* Speedometer
* Voltmeter
Instrument clusters include these indicator lights, if
vehicle is equipped with appropriate option:
* Air Bag
* Anti-Lock Brake System (ABS)
* Brake Warning
* Check Gauges
* Cruise On
* Headlight High Beam
* Low Fuel
* Low Washer Fluid
* CHECK ENGINE
* Overdrive Off
* Rear Wheel Anti-Lock (RWAL)
* Seat Belt Reminder
* Security
* Transmission Oil Temperature (A/T)
* Turn Signal
* Upshift (M/T)
* 4WD
SELF-DIAGNOSTIC SYSTEM
WARNING: Vehicle is equipped with an air bag system. To prevent air
bag deployment, disconnect negative battery cable and wait at
least 2 minutes before servicing instrument cluster. See
appropriate AIR BAG RESTRAINT SYSTEMS article.
CAUTION: When battery is disconnected, vehicle computer and memory
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![DODGE RAM 1999 Service Repair Manual Use Scan Tool To Verify VSS
Signal Is Sent By PCM
\b\
\](/manual-img/12/56915/w960_56915-857.png "DODGE RAM 1999 Service Repair Manual Use Scan Tool To Verify VSS
Signal Is Sent By PCM
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Use Scan Tool To Verify VSS
Signal Is Sent By PCM
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921 Not Receiving Distance Pulse Check PCM Software Level;
Message From PCM Use Scan Tool To Verify
Distance Pulse Message Is
Sent By PCM
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940 Not Receiving Air Bag Light On Check CCD Bus Connections At
Message From Air Bag Module ACM; Check ACM Fuse
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950 Not Receiving ABS Light On Message Check CCD Bus Connections
From Anti-lock Brake Control ModuleAt Anti-Lock Control Module;
Check Anti-Lock Control
Module Fuse
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999 Undefined Error Record Failure Message;
Press RESET Button To
Continue Self-Diagnostic
Test
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2) If no DTCs appear, cluster will start a walking segment
test. First, all segments will be illuminated, then each segment in
sequence. If any segment does not illuminate, repeat test to confirm
and replace instrument cluster. When walking segment test is complete,
bulb check will start.
3) If any bulb does not light, remove instrument cluster and
check bulb and bulb holder. See INSTRUMENT CLUSTER under REMOVAL &
INSTALLATION. Ensure bulb holder is properly installed in cluster. If
bulb and bulb holder are okay, replace instrument cluster. If LED does
not light, replace instrument cluster. When bulb check is complete,
gauge actuator test will start.
4) Each gauge needle should stop at 3 calibration points,
then return to relaxed position. If any gauge does not perform as
specified, remove instrument cluster. See INSTRUMENT CLUSTER under
REMOVAL & INSTALLATION. Inspect all connections between printed
circuit board and gauge terminals, repair as necessary. If connections
are okay, replace instrument cluster. Instrument cluster will
automatically exit self-diagnostics when test is complete.
SYSTEM TESTS
NOTE: There are 2 instrument cluster connectors. These connectors
look identical. Identify connector by wire color. See WIRING
DIAGRAMS.
BRAKE WARNING LIGHT INOPERATIVE
1) Ensure parking brake is released. Turn ignition on. If
brake warning light stays on, check and repair hydraulic brake system
as necessary. See appropriate DISC & DRUM article in BRAKES section.
2) If brake warning light does not illuminate when ignition
is on, check fuse No. 17 (10-amp) on Ram Pickup or fuse No. 11 (10-
amp) on Ram Van and Ram Wagon in junction block. Junction block is
located at left end cover of instrument panel. If fuse is okay, go to
next step. If fuse is blown, locate and repair cause of blown fuse.
Install new fuse and recheck system operation.
3) Turn ignition on. Measure voltage between ground and power
side of fuse No. 17 on Ram Pickup or fuse No. 11 on Ram Van and Ram
Wagon. If battery voltage is present, go to next step. If battery
voltage is not present, locate and repair open circuit between to
Page 859 of 1691
junction block. See WIRING DIAGRAMS.
4) Turn ignition off. Disconnect negative battery cable.
Disconnect parking brake switch connector. Switch is located at base
of parking brake lever. Ensure parking brake lever is released. Check
continuity between ground and parking brake switch terminal. If
continuity does not exist, go to next step. If continuity exists,
adjust or replace parking brake switch.
5) Ensure parking brake switch is still disconnected. Turn
ignition off. Remove instrument cluster. See INSTRUMENT CLUSTER under
REMOVAL & INSTALLATION. Check continuity between ground and park brake
switch connector. If continuity does not exist, go to next step. If
continuity exists, repair short to ground between instrument cluster
and park brake switch.
6) Check continuity between park brake switch connector and
instrument cluster connector C1, terminal No. 3 (White/Pink wire on
Ram Van and Ram Wagon; White/Light Green wire on Ram Pickup). See
Fig. 1. If continuity does not exist, repair open circuit. See WIRING
DIAGRAMS. If continuity exists, see PRELIMINARY DIAGNOSIS under SELF-
DIAGNOSTIC SYSTEM.
FOUR WHEEL DRIVE (4WD) LIGHT INOPERATIVE (RAM PICKUP)
1) Remove and inspect fuse No. 17 (10-amp) in junction block\
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Junction block is located at left end cover of instrument panel. If
fuse is okay, go to next step. If fuse is blown, locate and repair
cause of blown fuse. Install new fuse and recheck system operation.
2) Turn ignition on. Measure voltage between ground and power
side of fuse No. 17. If battery voltage is present, go to next step.
If battery voltage is not present, locate and repair open circuit
between ignition switch and junction block.
3) Turn ignition off. Disconnect negative battery cable.
Disconnect 4WD switch connector. 4WD switch connector is located at
right side of front axle. Check continuity between 4WD switch
connector Black wire and ground. If continuity does not exist, repair
open Black wire between 4WD switch and ground. If continuity exists,
go to next step.
4) Reconnect battery cable. Turn ignition on. Install jumper
wire between 4WD switch connector terminals. 4WD light should
illuminate. If light illuminates, replace 4WD switch. If light does
not illuminate, go to next step.
5) Turn ignition off. Disconnect negative battery cable.
Ensure 4WD switch is still disconnected. Remove instrument cluster.
See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Check continuity
between ground and instrument cluster connector C2 terminal No. 10
(Gray wire). See Fig. 1. If continuity does not exist, go to next
step. If continuity exists, repair short to ground in wire between
instrument cluster and 4WD switch.
6) Check continuity of wire between 4WD switch connector and
terminal No. 10 at instrument cluster connector C2. If continuity does
not exist, repair open wire. If continuity exists, replace bulb.
LOW WASHER FLUID LIGHT INOPERATIVE
1) Remove and inspect fuse No. 17 (10-amp) on Ram Pickup or
fuse No. 11 (10-amp) on Ram Van and Ram Wagon in junction block.
Junction block is located at left end cover of instrument panel. If
fuse is okay, go to next step. If fuse is blown, locate and repair
cause of blown fuse. Install new fuse and recheck system operation.
2) Turn ignition on. Measure voltage between ground and power
side of fuse No. 14 (10-amp) on Ram Pickup or fuse No. 11 (10-amp) o\
n
Ram Van and Ram Wagon. If battery voltage is present, go to next step.
If battery voltage is not present, locate and repair open circuit
between ignition switch and junction block.
Page 860 of 1691
3) Turn ignition off. Disconnect washer fluid level sensor
connector. Install jumper wire between washer fluid level sensor
connector terminals. Turn ignition on. Low washer fluid level light
should illuminate. Disconnect jumper wire and light should go off. If
light performs as specified, replace washer fluid level sensor. If
light does not perform as specified, go to next step.
4) Turn ignition off. Check continuity between ground and
washer fluid level sensor connector Black wire. If continuity does not
exist, repair open Black wire between washer fluid level sensor and
ground. If continuity exists, go to next step.
5) Ensure washer fluid level sensor is still disconnected.
Turn ignition off. Remove instrument cluster. See INSTRUMENT CLUSTER
under REMOVAL & INSTALLATION. Check continuity between ground and
instrument cluster connector C2 terminal No. 2 (Black/White wire) on
Ram Pickup and terminal No. 9 (Black/Gray wire) on Ram Van and Ram
Wagon. If continuity does not exist, go to next step. If continuity
exists, repair short to ground in White/Black or Black/Gray wire
between instrument cluster and washer fluid level sensor.
6) Check continuity of Black/White wire on Ram Pickup or
Black/Gray wire on Ram Van and Ram Wagon between washer fluid level
sensor connector and instrument cluster connector C2 terminal No. 2 on
Ram Pickup or terminal No. 9 on Ram Van and Ram Wagon. See Fig. 1. If
continuity does not exist, repair open Black/White wire on Ram Pickup
or Black/Gray wire on Ram Van and Ram Wagon. If continuity exists,
replace bulb.
WAIT-TO-START LIGHT INOPERATIVE (RAM PICKUP - DIESEL)
1) Remove and inspect fuse No. 17 (10-amp) in junction block\
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Junction block is located at left end cover of instrument panel. If
fuse is okay, go to next step. If fuse is blown, locate and repair
cause of blown fuse. Install new fuse and recheck system operation.
2) Turn ignition on. Measure voltage between ground and power
side of fuse No. 17. If battery voltage is present, go to next step.
If battery voltage is not present, locate and repair open circuit
between Power Distribution Center (PDC) and junction block.
3) Disconnect negative battery cable. Remove instrument
cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. Check
for battery voltage between ground and instrument cluster connector C1
terminal No. 2 (Dark Blue/White wire). See Fig. 1. Turn ignition on.
If battery voltage exists, go to next step. If battery voltage does
not exist, repair open Dark Blue/White wire between junction block and
instrument cluster.
4) Turn ignition off. Disconnect Powertrain Control Module
(PCM) White connector C2. PCM is located at firewall in right side of
engine compartment. Connector C2 is center connector. Check continuity
between ground and instrument cluster connector C1 terminal No. 8
(Orange/Black wire). If continuity does not exist, go to next step. If\
continuity exists, repair short to ground in Orange/Black wire between
instrument cluster and ground.
5) Install instrument cluster. Connect battery cable. Install
jumper wire between PCM White connector C2 terminal No. 20
(Orange/Black wire) and ground. See Fig. 2. Turn ignition on. Wait-to-
start light should illuminate. If wait-to-start light illuminates, see
appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE section. If
wait-to-start light does not illuminate, see SELF-DIAGNOSTICS.