1999 DODGE RAM lights

DIAGNOSTICS. If continuity does not exist, repair open Black/Light
Green or Black/Orange wire.
Fig. 1: Identifying Instrument Cluster Connector Terminals
Courtesy of Chrysler Corp.
Ram Van & Ram Wagon
1) If indicator lights operate, but all gauges are
inoperative, go to next step. If all gauges and CCD bus-controlled
indicator lights are inoperative, go to step 5).
2) Check fuse No. 12 (15-amp) in junction block. If fuse is
okay, go to next step. If any fuse is blown, repair short circuit and
replace fuse.
3) Measure voltage between ground and fuse No. 12 in junction
block. If battery voltage is present, go to next step. If battery
voltage is not present, repair open circuit.
4) Disconnect negative battery cable. Remove instrument

cluster. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION.
Reconnect negative battery cable. Measure voltage between ground and
terminal No. 6 (Pink/White wire) of instrument cluster connector C1.
See Fig. 1 . If battery voltage is present, reinstall instrument
cluster and go to SELF- DIAGNOSTICS. If battery voltage is not
present, repair open circuit between fuse No. 12 (15-amp) in junction
block and instrument cluster connector C1 and go to next step.
5) Remove and inspect fuse No. 11 (10-amp) in junction block\
.
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.
6) Turn ignition on. Measure voltage between ground and power
side (Dark Blue/White wire) of fuse No. 11 (10-amp) in junction bloc\
k.
If battery voltage is present, go to step 8). If battery voltage is
not present, locate and repair open circuit to fuse No. 11. See WIRING
DIAGRAMS.
7) Turn ignition off and disconnect negative battery cable.
Install instrument cluster. Connect negative battery cable. Turn
ignition on. Set parking brake and observe instrument cluster brake
warning light. If brake warning light is on, go to next step. If brake
warning light is off, go to step 9).
8) Turn ignition off. Turn parking lights on and adjust
instrument panel lights dimmer rheostat to full bright position. If
instrument panel lights are on, go to step 10). If instrument panel
lights are off, repair instrument cluster illumination ground circuit
between instrument cluster connector C2 terminal No. 7 (Black wire)
and ground. See WIRING DIAGRAMS.
9) Turn ignition off and disconnect negative battery cable.
Remove instrument cluster. See INSTRUMENT CLUSTER under REMOVAL &
INSTALLATION. Connect negative battery cable. Turn ignition on.
Measure voltage between ground and terminal No. 2 (Dark Blue/White
wire) at instrument cluster connector C1. If battery voltage is
present, go to SELF-DIAGNOSTICS. If battery voltage is not present,
repair open circuit between junction block fuse No. 11 and instrument
cluster.
10) Turn ignition off and disconnect negative battery cable.
Remove instrument cluster. See INSTRUMENT CLUSTER under REMOVAL &
INSTALLATION. Check continuity between ground and terminal No. 4
(Black/Dark Green wire) at instrument cluster connector C1. If
continuity exists, go to SELF-DIAGNOSTICS. If continuity does not
exist, locate and repair open in ground circuit.
SELF-DIAGNOSTICS
1) With ignition off, press and hold trip odometer RESET
button while turning ignition switch to ON position. Continue to hold
RESET button until odometer window displays CHEC (about 10 seconds).
Release RESET button. If problem exists, system will display
Diagnostic Trouble Codes (DTC). See DIAGNOSTIC CODE CHART table. For
repairs of DTCs, see appropriate BODY CONTROL COMPUTER TESTS article.
DIAGNOSTIC TROUBLE (DTC) CODE CHART







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DTC Description  Correction 




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110 Cluster CPU, RAM Or EEPROM Fault  Replace Cluster 




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900 CCD Bus Inoperative Check CCD Bus Connections At

  Cluster; Check Cluster 

  Fuses; Check CCD Bus Bias;

  Check CCD Bus Voltage; 

  Check CCD Bus Terminations 




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920 Not Receiving VSS Message From PCM Check PCM Software Level; 

been submerged in water. Water can enter through the axle
vent hole and contaminate the lubricant.
BATTERY WARNING
WARNING: When battery is disconnected, vehicles equipped with
computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure.
WARNING: Batteries produce flammable hydrogen gas. Keep flames and
sparks away from the battery or and explosion may occur.
Never smoke when working in the vicinity of the battery.
WARNING: When checking or servicing the battery, disconnect the
negative cable. Be careful not to cause a short circuit by
allowing metal objects to contact the battery posts and the
vehicle at the same time.
REPLACING BLOWN FUSES
CAUTION: Before replacing a blown fuse, remove ignition key, turn off
all lights and accessories to avoid damaging the electrical
system. Be sure to use fuse with the correct indicated
amperage rating. The use of an incorrect amperage rating fuse
may result in a dangerous electrical system overload.
BRAKE PAD WEAR INDICATOR
Indicator will cause a squealing or scraping noise, warning
that brake pads need replacement.
BRAKE HOSES
WARNING: Worn brake hoses can burst and cause brake failure. If
any sign of cracking, scuffing, or worn spots are found,
replace the brake hoses immediately.
BRAKE FLUID
WARNING: The use of incorrect fluid in the brake system may cause
damage to components. DO NOT use any fluid other than DOT-3
brake fluid. DO NOT use reclaimed fluid or fluid that has
been stored in old or open containers. It is essential that
foreign particles and other liquids are kept out of the
brake fluid reservoir.
CATALYTIC CONVERTER
CAUTION: Continued operation of vehicle with a severe malfunction
could cause converter to overheat, resulting in possible
damage to converter and vehicle.
COOLANT
CAUTION: To avoid possible damage to vehicle use only ethylene-glycol
based coolants with a mixture ratio from 50-70% anti-freeze.
DO NOT use 100% anti-freeze as it will cause the formation
of cooling system deposits.
DIESEL FUEL ANTI-FUNGAL ADDITIVES

F1 - Not Used
F2 - 30 Amp (Lt. Green)
Blower Motor
CB1 - 30 Amp (Circuit Breaker)
Power Windows
CB2 - 30 Amp (Circuit Breaker)
Power Seats
1 - 20 Amp (Yellow)
Power Outlet
2 - Not Used
3 - Not Used
4 - Not Used
5 - 20 Amp (Yellow)
Cigar Lighter
6 - 20 Amp (Yellow)
Turn Signal Flasher
7 - 15 Amp (Lt. Blue)
Radio
8 - 20 Amp (Yellow)
Windshield Wipers
9 - 10 Amp (Red)
Fuel Pump Relay, A/C Compressor Clutch Relay
Automatic Shutdown Relay, Transmission Overdrive
Solenoid, EGR Solenoid, Powertrain Control Module (PCM)
Ignition Module
High Pressure Fuel Shut-Off Solenoid Relay (CNG Models Only)
EGR Solenoid (CNG Models Only)
10 - Not Used
Vehicle Speed Control
11 - 10 Amp (Red)
Buzzer, Overhead Console
12 - 15 Amp (Lt. Blue)
Airbag Diagnostic Module, Cluster, Message Center,
13 - 5 Amp (Tan)
Illumination
14 - 20 Amp (Yellow)
RWAL and ABS Module
15 - 15 Amp (Lt. Blue)
Automatic Day/Night Mirror, Back-up Lights,
Daytime Running Lamps
16 - 15 Amp (Lt. Blue)
Airbag Diagnostic Module
17 - 15 Amp (Lt. Blue)
Ignition Off Draw, Radio and Clock Memory
18 - 15 Amp (Lt. Blue)
Parking Lamps
19 - 20 Amp (Yellow)
Power Door Locks
20 - 15 Amp (Lt. Blue)
Stop Lamps
POWER DISTRIBUTION CENTER

Fig. 20: Underhood Power Distribution Center
Courtesy of Chrysler Corp.
WARNING: Always disconnect battery ground cable before servicing
"high-current fuses. It is recommended that "high-current"
fuses be replaced by a qualified technician.
Power Distribution Center Relay & Fuse Identification
A - Starter Relay
B - Trailer Lights Relay
C - Auto Transmission Relay
D - Anti-Lock Brake System Relay
E - Auto Shutdown Relay
F - Air Conditioning Clutch Relay
G - Horn Relay
H - Fuel System Relay
J - ABS Warning Light Relay
K - Fog Lamp 2 Relay
L - Fog Lamp 1 Relay
1 - 30 Amp (Pink)
Engine Control
2 - 40 Amp (Green)
Ignition Run/Accessory
3 - 40 Amp (Green)
Ignition Run
4 - 50 Amp (Red)
Instrument Panel, Horn, Parking Lights
5 - 20 Amp (Blue)
Fuel Pump
6 - 30 Amp (Pink)
Trailer Lights
7 - 40 Amp (Green)
Stop/Headlight
8 - 40 Amp (Green)
ABS Pump
9 - 20 Amp (Yellow)
Hazard Lights
10 - 20 Amp (Yellow)
Horn/AC
11 - 15 Amp (Blue)

terminals. See Fig. 1. Select 10-amp scale.
3) Turn off all electrical accessories. Turn off interior
lights, underhood lamp, trunk light, illuminated entry, etc. To avoid
damaging ammeter or obtaining a false meter reading, all accessories
must be off before turning test switch knob to OFF position.
4) Turn test switch knob to OFF position to allow current to
flow through ammeter. If meter reads wrong polarity, turn test switch
to ON position and reverse leads. Turn test switch to OFF position.
Observe current reading. If reading is less than 2 amps, turn test
switch to ON position to keep electrical circuits powered-up.
5) Select low amp scale. Switch lead to the correct meter
position. Turn test switch to OFF position and compare results to
normal current draw. See the GENERAL MOTORS PARASITIC LOAD TABLE . If
current draw is unusually high for the vehicle's overall electrical
system, remove system fuses one at a time until current draw returns
to normal.
6) Turn test switch to ON position each time door is opened
or fuse is removed. Turn switch to OFF position to read current draw
value through meter. When the cause of excessive current drain has
been located and repaired, remove test switch and reconnect negative
battery cable to the negative battery terminal.
Fig. 1: Connecting Kent-Moore Disconnect Tool (J-38758)
Courtesy of General Motors Corp.
GENERAL MOTORS PARASITIC LOAD TABLE (MILLIAMPS)









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or damage.
* Once a month, Inspect battery and clean and tighten
terminals as required.
* Once a month, check fluid levels of coolant reservoir,
brake master cylinder, power steering & transmission.
Add fluids as required.
* Once a month, check all lights and all other electrical items
for correct operation
* Once a month, Inspect and clean wiper blades as required.
* Twice a year, lubricate the external lock cylinders.

  Model 248 (4WD)  7.3 Pts. (3.4L) 


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 Model 267 (2WD)  7 Pts. (3.3L) 


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 Model 267 (4WD)  7.8 Pts. (3.6L) 


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 Model 286 (2WD)  6.8.Pts. (3.2L) 


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 Model 286 (4WD)  10.1 Pts. (4.8L) 

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Rear Axle  Model 248 (2WD)  6.3 Pts. (3L) 

Limited Slip 
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Differential  Model 248 (4WD)  7.3 Pts. (3.4L) 


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 Model 267 (2WD)  7 Pts. (3.3L) 


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 Model 267 (4WD)  7.8 Pts. (3.6L) 


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 Model 286 (2WD)  6.8 Pts. (3.2L) 


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 Model 286 (4WD)  10.1 Pts. (4.8L) 

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Front Axle  Model 216  6.8 Pts. (3.6L) 

Lubricant 
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 Model 248  7.6 Pts. (3.6L) 

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Transfer Case NV231 HD  2.5 Pts. (1.2L) 

Fluid   

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Power Take  NV021  4.6 Pts. (2.1L) 

Off Adapter   

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Power  Drained  2.7 Pts. (1.3L) 

Steering   

Fluid   

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A/C  Charge Capacity  32 Oz. (.9Kg) 

Refrigerant   

  

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Refrigerant  A/C System Capacity  7.75 Oz. (230ML) 

Oil   

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Fuel Tank 119" & 139" Wheelbase Vehicles 26 Gal. (98L) 


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 All Others  35 Gal. (132L) 

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1) - Capacities are recommended or calculated levels. Always use 

dipstick (if available) to measure level. 
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MISCELLANEOUS NOTES
* Once a month, check tire pressure and look for unusual wear
or damage.
* Once a month, Inspect battery and clean and tighten
terminals as required.
* Once a month, check fluid levels of coolant reservoir,
brake master cylinder, power steering & transmission.
Add fluids as required.
* Once a month, check all lights and all other electrical items
for correct operation