
Symptom List:
P2203-TORQUE REDUCTION MESSAGE FROM ABS - CAN PLAUSI-
BILITY
P2203-TORQUE REDUCTION MESSAGE FROM ABS - MESSAGE
ERROR
P2203-TORQUE REDUCTION MESSAGE FROM ABS - MESSAGES
MISSING
P2203-TORQUE REDUCTION MESSAGE FROM ABS - NO COMMUN-
IOCATION
P2203-TORQUE REDUCTION MESSAGE FROM ABS - PLAUSIBIL-
ITY #1
P2203-TORQUE REDUCTION MESSAGE FROM ABS PLAUSIBILITY
#2
P2208-ABS BRAKE SIGNAL CAN MESSAGE IMPLAUSIBLE
P2208-ABS CAN BRAKE SIGNAL PLAUSIBILITY
P2209-ABS CAN MESSAGE MISSING OR INCORRECT
P2253-STEERING ANGLE SENSOR PLAUSIBILITY
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2203-TORQUE REDUCTION
MESSAGE FROM ABS - CAN PLAUSIBILITY.
POSSIBLE CAUSES
CAB DTCS
ENGINE CONTROL MODULE
VERIFY CAB COMMUNICATION
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIItattempt to communicate with the CAB.
NOTE: If there are other DTCs set with this DTC, refer to the Symptom List
and repair other stored ECM DTCs before diagnosing this DTC.
Is the CAB communicating with the DRB?All
Ye s!Go To 2
No!Refer to the appropriate symptom in the Body Diagnostic Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
180
DRIVEABILITY - DIESEL

TEST ACTION APPLICABILITY
2 Turn the ignition on.
With the DRBIIIt, read the CAB DTCs.
Are there any CAB DTCs?All
Ye s!Refer to symptom list for problems related to CAB.
Perform BODY VERIFICATION TEST - VER 1.
No!Go To 3
3NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRBIIIt, erase the ECM DTCs.
Turn the ignition off then turn the ignition on and wait 60 seconds.
With the DRBIIIt, read the ECM DTCs.
Does the DRB display this DTC?All
Ye s!Replace and program the Engine Control Module in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No!Go To 4
4WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?All
Ye s!Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No!Test Complete.
181
DRIVEABILITY - DIESEL
P2203-TORQUE REDUCTION MESSAGE FROM ABS - CAN PLAUSIBIL-
ITY Ð
Continued

Symptom List:
P2204-TORQUE REDUCTION MESSAGE FROM TCM - CAN PLAU-
SIBILITY
P2204-TORQUE REDUCTION MESSAGE FROM TCM - ENGINE
STOP
P2204-TORQUE REDUCTION MESSAGE FROM TCM - MESSAGE
ERROR
P2204-TORQUE REDUCTION MESSAGE FROM TCM - MESSAGES
MISSING
P2204-TORQUE REDUCTION MESSAGE FROM TCM - PLAUSIBIL-
ITY
P2204-TORQUE REDUCTION MESSAGE FROM TCM - TCM DTC #1
P2204-TORQUE REDUCTION MESSAGE FROM TCM - TCM DTC #2
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2204-TORQUE REDUCTION
MESSAGE FROM TCM - CAN PLAUSIBILITY.
POSSIBLE CAUSES
ENGINE CONTROL MODULE
TCM DTCS
VERIFY TCM COMMUNICATION
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIItattempt to communicate with the TCM.
NOTE: If there are other DTCs set with this DTC, refer to the Symptom List
and repair other stored ECM DTCs before diagnosing this DTC.
Is the TCM communicating with the DRB?All
Ye s!Go To 2
No!Refer to the appropriate symptom in the Body Diagnostic Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition on.
With the DRBIIIt, read the TCM DTCs.
Are there any TCM DTCs?All
Ye s!Refer to symptom list for problems related to TCM.
Perform BODY VERIFICATION TEST - VER 1.
No!Go To 3
182
DRIVEABILITY - DIESEL

TEST ACTION APPLICABILITY
3NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRBIIIt, erase the ECM DTCs.
Turn the ignition off then turn the ignition on and wait 60 seconds.
With the DRBIIIt, read the ECM DTCs.
Does the DRB display this DTC?All
Ye s!Replace and program the Engine Control Module in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No!Go To 4
4WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?All
Ye s!Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No!Test Complete.
183
DRIVEABILITY - DIESEL
P2204-TORQUE REDUCTION MESSAGE FROM TCM - CAN PLAUSIBIL-
ITY Ð
Continued

Symptom List:
P2217-TCM DTC INTERNAL FAULT PRESENT
P2218-TCM DTC 1-2 AND 4-5 SHIFT SOLENOID FAULT PRESENT
P2219-TCM DTC 2-3 SHIFT SOLENOID FAULT PRESENT
P2220-TCM DTC 3-4 SHIFT SOLENOID FAULT PRESENT
P2221-TCM DTC TORQUE CONVERTER CLUTCH SOLENOID
FAULT PRESENT
P2222-TCM DTC MODULATING PRESSURE SOLENOID FAULT
PRESENT
P2223-TCM DTC SHIFT PRESSURE SOLENOID FAULT PRESENT
P2224-TCM DTC VALVE VOLTAGE SUPPLY FAULT PRESENT
P2225-TCM DTC SPEED SENSOR VOLTAGE FAULT PRESENT
P2226-TCM DTC EWM CAN MESSAGE FAULT PRESENT
P2227-TCM DTC RIGHT REAR WHEEL SPEED IMPLAUSIBLE
FAULT PRESENT
P2228-TCM DTC TRANSMISSION RATIO ERROR FAULT PRESENT
P2229-TCM DTC CAN MSG IMPLAUSIBLE FAULT PRESENT
P2230-TCM DTC TCC EXCESSIVE POWER CONSUMPTION FAULT
PRESENT
P2231-TCM DTC NOT UNEQUIVOCAL FAULT PRESENT
P2232-TCM DTC NEGATIVE GEAR COMPARISON FAULT PRESENT
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2217-TCM DTC INTERNAL
FAULT PRESENT.
POSSIBLE CAUSES
VERIFY CURRENT DTC
188
DRIVEABILITY - DIESEL

Symptom List:
P2259-TORQUE REDUCTION MESSAGE FROM HVAC- PARITY ER-
ROR
P2259-TORQUE REDUCTION MESSAGE FROM HVAC- SWITCH
SIGNAL ERROR
P2259-TORQUE REDUCTION MESSAGE FROM HVAC- SWITCH
SIGNAL PLAUSIBILITY
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2259-TORQUE REDUCTION
MESSAGE FROM HVAC- PARITY ERROR.
POSSIBLE CAUSES
AUTOMATIC TEMP CONTROL DTC
TEST ACTION APPLICABILITY
1NOTE: This DTC indicates the presents of a problem or DTC in the ATC
Module.
View repair statement.All
Ye s!Refer to symptom list for problems related to Automatic Temper-
ature Control.
Perform ROAD TEST VERIFICATION - VER-2.
196
DRIVEABILITY - DIESEL

INTRODUCTION
TABLE OF CONTENTS
page page
VEHICLE IDENTIFICATION NUMBER
DESCRIPTION..........................1
INTERNATIONAL SYMBOLS
DESCRIPTION..........................2
FASTENER IDENTIFICATION
DESCRIPTION..........................3
FASTENER USAGE
DESCRIPTION - FASTENER USAGE.........6THREADED HOLE REPAIR
DESCRIPTION - THREADED HOLE REPAIR....6
METRIC SYSTEM
DESCRIPTION..........................6
TORQUE REFERENCES
DESCRIPTION..........................9
VEHICLE IDENTIFICATION
NUMBER
DESCRIPTION
The Vehicle Identification Number (VIN) plate is
located on the lower windshield fence next to the left
a-pillar. The VIN contains 17 characters that provide
data concerning the vehicle. Refer to the VIN
DECODING INFORMATION table to determine the
identification of a vehicle.To protect the consumer from theft and possible
fraud the manufacturer is required to include a
Check Digit at the ninth position of the Vehicle Iden-
tification Number. The check digit is used by the
manufacturer and government agencies to verify the
authenticity of the vehicle and official documenta-
tion. The formula to use the check digit is not
released to the general public.
VIN DECODING INFORMATION
POSITION INTERPRETATION CODE = DESCRIPTION
1,2&3 World Manufacturer CodeWDX = Incomplete vehicle / Dodge
WD1 = Incomplete vehicle / Dodge
WD0 = Truck / Dodge
WD2 = Truck / Dodge
WD5 = Multi-purpose passenger vehicle / Dodge
WD8 = Multi-purpose passenger vehicle / Dodge
WDW = Bus / Dodge
WDP = Incomplete vehicle / Freightliner
WDY = Truck / Freightliner
WDR = Multi-purpose passenger vehicle / Freightliner
WD3 = Truck / Mercedes-Benz
WD4 = Multi-purpose vehicle / Mercedes-Benz
WD9 = Incomplete vehicle / Mercedes-Benz
4 ModelB = All 4x2 vehicle types / Canada
P = All 4x2 vehicle types / USA
X = 4x2 Chassis-cab
Y = 4x2 Truck
W = 4x2 Multi-purpose passenger vehicle
VAINTRODUCTION 1

FASTENER USAGE
DESCRIPTION - FASTENER USAGE
WARNING: USE OF AN INCORRECT FASTENER
MAY RESULT IN COMPONENT DAMAGE OR PER-
SONAL INJURY.
Fasteners and torque specifications references in
this Service Manual are identified in metric and SAE
format.
During any maintenance or repair procedures, it is
important to salvage all fasteners (nuts, bolts, etc.)
for reassembly. If the fastener is not salvageable, a
fastener of equivalent specification must be used.
THREADED HOLE REPAIR
DESCRIPTION - THREADED HOLE REPAIR
Most stripped threaded holes can be repaired using
a Helicoilt. Follow the vehicle or Helicoiltrecommen-
dations for application and repair procedures.
METRIC SYSTEM
DESCRIPTION
The metric system is based on quantities of one,
ten, one hundred, one thousand and one million.
The following chart will assist in converting metric
units to equivalent English and SAE units, or vise
versa.
CONVERSION FORMULAS AND EQUIVALENT VALUES
MULTIPLY BY TO GET MULTIPLY BY TO GET
in-lbs x
0.11298= Newton Meters
(N´m)N´m x 8.851 = in-lbs
ft-lbs x
1.3558= Newton Meters
(N´m)N´m x
0.7376= ft-lbs
Inches Hg (60É F) x 3.377 = Kilopascals (kPa) kPa x
0.2961= Inches Hg
psi x 6.895 = Kilopascals (kPa) kPa x 0.145 = psi
Inches x 25.4 = Millimeters (mm) mm x
0.03937= Inches
Feet x
0.3048= Meters (M) M x 3.281 = Feet
Yards x
0.9144= Meters M x
1.0936= Yards
mph x
1.6093= Kilometers/Hr.
(Km/h)Km/h x
0.6214= mph
Feet/Sec x
0.3048= Meters/Sec (M/S) M/S x 3.281 = Feet/Sec
mph x
0.4470= Meters/Sec (M/S) M/S x 2.237 = mph
Kilometers/Hr. (Km/h) x
0.27778= Meters/Sec (M/S) M/S x 3.600 Kilometers/Hr. (Km/h)
6 INTRODUCTIONVA