transmission DODGE RAM 1999 Service Manual Online
[x] Cancel search | Manufacturer: DODGE, Model Year: 1999, Model line: RAM, Model: DODGE RAM 1999Pages: 1691, PDF Size: 40.34 MB
Page 375 of 1691
transmission and jack rearward until input shaft clears clutch disc.
Lower transmission jack and remove transmission from under vehicle.
Installation
1) To install, reverse removal procedure. Apply high-
temperature grease to pilot bushing located in end of crankshaft. Also
apply grease to release bearing bore, release fork, release fork ball
stud and drive shaft slip yoke. Apply sealer to threads of drain plug
before installing in case.
2) Align reference marks made on drive shaft(s) and "U"
joints during removal. After installing clutch assembly and housing,
tighten housing bolts nearest alignment dowels first. During final
transmission installation, install shims between clutch housing and
transmission at appropriate bolt location. Tighten all nuts and bolts
to specification. See TORQUE SPECIFICATIONS table.
TRANSMISSION (RAM PICKUP)
Removal (NV3500 & NV5600)
1) Disconnect negative battery cable. Shift transmission to
Neutral. Remove shift boot bezel screws and slide boot upward on lever
extension. Remove shift tower and lever assembly. Raise and support
vehicle.
2) On 4WD models, remove skid plate, if equipped. Remove
crankshaft position sensor. Mark drive shaft and axle yoke for
alignment reference. Remove drive shaft. Remove exhaust "Y" pipe. On
4WD models, disconnect and lower remaining exhaust pipes for
clearance, as necessary. Disconnect speed sensor harness connector.
3) Support engine using adjustable jackstand. If transmission
is to be disassembled for repair, drain lubricant from transmission.
On 4WD models, disconnect transfer case shift linkage at transfer case
range lever and remove shift lever from transmission. Remove
bolts/nuts attaching transmission to rear mount.
4) Support transmission with a transmission jack. Secure
transmission with safety chains. Remove rear crossmember. On 4WD
models, support transfer case with transmission jack and secure
transfer case to jack with safety chains. Remove transfer case
attaching nuts and move transfer case rearward until input gear clears
transmission output shaft.
5) Lower transfer case assembly and remove it from under
vehicle. On 4WD models, remove clutch slave cylinder splash shield, if
equipped. Remove clutch slave cylinder and move aside for working
clearance. Remove starter. Remove transmission splash shield. Remove
transmission harness wires from clips on transmission shift cover. On
some models, it may be necessary to remove front axle struts and oil
filter for access and removal clearance.
6) Lower transmission slightly. Remove shift tower and lever
assembly. Remove transmission-to-engine bolts. Slide transmission and
jack rearward until input shaft clears clutch disc. Lower transmission
jack and remove transmission from under vehicle.
Installation
1) To install, reverse removal procedure. Apply high-
temperature grease to pilot bushing located in end of crankshaft. Also
apply grease to release bearing bore, release fork, release fork ball
stud and drive shaft slip yoke.
2) Apply sealer to threads of drain plug before installing in
case. Align reference marks made on drive shaft(s) and axle yoke(s)
during removal. After installing clutch assembly and housing, tighten
housing bolts nearest alignment dowels first. Tighten all nuts and
bolts to specification. See TORQUE SPECIFICATIONS table.
Removal (NV4500 & NV4500HD)
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1) Disconnect negative battery cable. Shift transmission to
Neutral. Remove shift boot bezel screws and slide boot upward on lever
extension. Scribe mark position of extension on shank of shift lever.
2) Raise and support vehicle. On 4WD models, remove skid
plate, if equipped. Mark drive shaft and axle yoke for alignment
reference. Remove drive shaft. Remove exhaust "Y" pipe. On 4WD models,
disconnect and lower remaining exhaust pipes for clearance as
necessary. Disconnect speed sensor harness connector and back-up light
harness connector.
3) Support engine using adjustable jackstand. If transmission
is to be disassembled for repair, drain lubricant from transmission.
See Fig. 9 . On 4WD models, disconnect transfer case shift linkage at
transfer case range lever and remove shift lever from transmission.
Remove bolts/nuts attaching transmission to rear mount.
4) Support transmission with a transmission jack. Secure
transmission with safety chains. Remove rear crossmember. On 4WD
models, support transfer case with transmission jack and secure
transfer case to jack with safety chains. Remove transfer case
attaching nuts and move transfer case rearward until input gear clears
transmission output shaft.
5) Lower transfer case assembly and move it from under
vehicle. On 4WD models, remove clutch slave cylinder splash shield, if
equipped. Remove clutch slave cylinder, and move aside. Remove
starter. Remove transmission splash shield. Remove transmission
harness wires from clips on transmission shift cover. On some models,
it may be necessary to remove front axle struts and oil filter for
access and removal clearance.
6) Lower transmission slightly. Remove shift tower and lever
assembly. Remove transmission-to-engine bolts. Slide transmission and
jack rearward until input shaft clears clutch disc. Lower transmission
jack and remove transmission from under vehicle.
Installation
1) To install, reverse removal procedure. Apply high-
temperature grease to pilot bushing located in end of crankshaft. Also
apply grease to release bearing bore, release fork, release fork ball
stud and propeller shift slip yoke.
2) Apply sealer to threads of drain plug before installing in
case. Align reference marks made on drive shaft(s) and axle yoke(s)
during removal. After installing clutch assembly and housing, tighten
housing bolts nearest alignment dowels first.
3) During final transmission installation, install shims
between clutch housing and transmission at appropriate bolt location.
See CLUTCH HOUSING BORE RUNOUT and CLUTCH HOUSING FACE RUNOUT under
CLUTCH HOUSING (RAM PICKUP) under TESTING. Press extension to scribe
mark made during removal. A 0.12-0.20" (3-5 mm) space should exist
between shift lever isolator, top edge of stub shaft and tool lower
jaw. Tighten all nuts and bolts to specification. See TORQUE
SPECIFICATIONS table.
Fig. 9: Identifying Transmission Drain Bolt (NV4500 & NV4500HD)
Courtesy of Chrysler Corp.
CLUTCH ASSEMBLY
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CAUTION: Clutch disc may contain asbestos fibers which can cause
serious health risk. DO NOT sand clutch components. DO NOT
clean components using compressed air. To clean components,
use a water-dampened cloth.
Removal
With transmission and clutch housing removed, mark pressure
plate and flywheel for reassembly reference. Install clutch aligner in
clutch disc to prevent disc from falling. Loosen pressure plate bolts
evenly and in rotation to avoid warping pressure plate. Remove
pressure plate and disc from flywheel. See Fig. 10.
Inspection
1) Check for oil leakage through engine rear main bearing oil
seal and transaxle input shaft seal. Check flywheel and pressure plate
for burned areas, discoloration, cracks, grooves or ridges. Replace as
necessary.
2) Use medium sandpaper (80-180 grade) to clean flywheel
surface, then wipe with mineral spirits. DO NOT flat-machine flywheel
surface. Check facing surfaces for grease or oil contamination. Check
clutch disc for wear. Clutch disc face-to-rivet head distance should
be at least .008" (.20 mm). Check splines of disc hub and transaxle
input shaft.
3) Using straightedge, check pressure plate. Friction area
should be flat to slightly concave, with the inner diameter about 0-.
0039" (0-0.1 mm) less than outer diameter. Using surface plate, check
clutch cover for flatness. Sections around bolt holes should contact
surface plate within .015" (.38 mm). Ensure cover-to-flywheel dowel
fit is snug. Replace clutch assembly as necessary.
NOTE: Before installing clutch disc, ensure flywheel mating
surface, pilot bearing/bushing and clutch release bearing are
in satisfactory condition. Repair and/or replace components
as necessary.
Installation
To install, reverse removal procedure using clutch aligner.
Ensure reference marks are aligned. Tighten pressure plate retaining
bolts evenly a few threads at a time to prevent warpage. See TORQUE
SPECIFICATIONS table.
Fig. 10: Exploded View Of Clutch Assembly (Typical)
Courtesy of Chrysler Corp.
PILOT BEARING, CLUTCH RELEASE BEARING & FORK
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NOTE: Clutch release bearing is packed with grease. DO NOT use
cleaning solvent to clean release bearing.
Removal
1) Remove transmission and clutch housing. See TRANSMISSION
(DAKOTA) or TRANSMISSION (RAM PICKUP). Disconnect release bearing fr\
om
fork, and remove bearing. See Fig. 11. Remove release fork.
2) Inspect bearing. Bearing should turn smoothly under a
light thrust load. Inspect release fork and fork ball pivot for
distortion and wear.
Installation
1) Lubricate crankshaft pilot bearing, input shaft splines,
bearing retainer slide surface, fork pivot and release fork pivot
surface with high-temperature bearing grease.
2) Install release fork and release bearing. Ensure fork and
bearing are properly secured. Install transmission and clutch housing.
Fig. 11: Exploded View Of RWD Clutch Release Bearing Assembly
Courtesy of Chrysler Corp.
CLUTCH MASTER CYLINDER
Removal
1) Disconnect clutch pedal interlock switch wires. Remove
locating clip from clutch master cylinder mounting bracket. Remove
retaining clip, flat washer and wave washer that attach clutch master
cylinder push rod to clutch pedal. Slide clutch master cylinder push
rod off pedal pin. Ensure cap on clutch master cylinder reservoir is
tight.
2) Remove clutch fluid reservoir. Rotate clutch master
cylinder 45 degrees counterclockwise to unlock it. Remove cylinder
from dash panel. Remove clutch master cylinder rubber seal from dash
panel.
Installation
Lubricate cylinder seal with liquid soap to ease
installation. Seat seal in dash and around cylinder. To install,
reverse removal procedure.
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TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS \
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Application Ft. Lbs. (N.m)\
Clutch Master Cylinder Nuts ................................ 40 (54)\
Clutch Slave Cylinder Nuts ................................. 17 (23)\
Crossmember-To-Frame Bolts
AX15 & NV3500 (Dakota) ..................................... 30 (41\
)
NV3500 (Ram Pickup) ........................................ 50 (68\
)
Crossmember-To-Transmission Insulator Nuts
2WD (NV3500 - Ram Pickup) ................................ 50 (68\
)
4WD (NV3500 - Ram Pickup) .......................... 40-45 (54-61\
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Flywheel Bolts
Dakota 2.5L ................................................ 70 (95)\
Dakota V6 & V8 ............................................. 55 (75)\
Pressure Plate Bolts
5/16" .................................................... 17 (23)\
3/8" ..................................................... 30 (41)\
Transfer Case To Transmission Nuts
AX15 ................................................. 26 (35 N.m)\
NV3500, NV4500, NV4500HD & NV5600
5/16" ............................................. 22-30 (30-41)\
3/8" .............................................. 30-35 (41-47)\
Transmission-To-Clutch Housing Bolts
AX15 ..................................................... 27 (37)\
NV3500 (Ram Pickup) & NV5600 ....................... 40-45 (54-61\
)
NV1500, NV3500 (Dakota), NV4500 & NV 4500HD ............. 80 (108\
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"U" Joint Clamp Bolts ...................................... 14 (19)\
INCH Lbs. (N.m)
Shift Tower Bolts (NV3500) ............................ 62-89 (7-10\
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CO M PU TE R R ELE A R N P R O CED URES
1999 D odge P ic ku p R 1500
GENERAL INFORMATION
DaimlerChrysler Computer Relearn Procedures
INTRODUCTION
Vehicles equipped with engine or transmission/transaxle
computers may require a computer relearn procedure after the vehicle
battery is disconnected. Vehicle computers memorize and store vehicle
operation patterns for optimum driveability and performance. When the
vehicle battery is disconnected, this memory is lost, resulting in a
driveability problem. Depending on the vehicle and how it is equipped,
the following driveability problems may exist:
* Rough or unstable idle.
* Hesitation or stumble.
* Rich or lean running.
* Poor fuel mileage.
* Harsh or poor transmission/transaxle shift quality.
Default data is used until NEW data from each key start is
stored. As the computer restores its memory from each new key start,
driveability is restored.
Driveability problems may occur during the computer relearn
stage. To accelerate computer relearn process after battery removal
and installation, specified computer relearn procedures should be
performed. See appropriate procedures under specified manufacturer.
COMPUTER RELEARN PROCEDURES
ALL MODELS
NOTE: Read all procedures listed to determine why each procedure is
to be performed before proceeding.
Vehicle Driveability Computer Relearn Procedure
Manufacturer does not provide a specified computer relearn
procedure for obtaining proper driveability. If vehicle battery was
disconnected or Powertrain Control Module (PCM) was replaced, driving
the vehicle will enable the PCM to perform a computer relearn
procedure for obtaining proper driveability. Inform customer that
driveability may differ from what they are accustomed to until the PCM
completes the computer relearn procedure.
NOTE: If Powertrain Control Module (PCM) was replaced, the correct
vehicle mileage and Vehicle Identification Number (VIN) must
be programmed into the PCM to prevent Diagnostic Trouble
Codes (DTCs) from being set in the Anti-Lock Brake System
(ABS) module and Supplemental Restraint System (SRS) module\
.
To program PCM and clear DTCs from ABS and SRS modules,
proceed to appropriate procedure listed. If replacing
Powertrain Control Module (PCM) on models equipped with a
Smart Key Immobilizer Module (SKIM), the secret key data must\
also be updated to enable engine starting. To update secret
key data, proceed to appropriate procedure listed.
Programming PCM & Clearing DTCs From ABS & SRS Modules
Connect scan tool to Data Link Connector (DLC) below driver's\
side of instrument panel. Using scan tool, enter correct VIN and
mileage into PCM. Using scan tool manufacturer's instructions, clear
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![DODGE RAM 1999 Service Manual Online DTCs from ABS and SRS modules.
Updating Secret Key Data
Connect scan tool to Data Link Connector (DLC) below drivers\
side of instrument panel. Go to ENGINE, then MISC menu on scan](/img/12/56915/w960_56915-380.png "DODGE RAM 1999 Service Manual Online DTCs from ABS and SRS modules.
Updating Secret Key Data
Connect scan tool to Data Link Connector (DLC) below drivers\
side of instrument panel. Go to ENGINE, then MISC menu on scan")
DTCs from ABS and SRS modules.
Updating Secret Key Data
Connect scan tool to Data Link Connector (DLC) below driver's\
side of instrument panel. Go to ENGINE, then MISC menu on scan tool.
Place the SKIM in SECURED ACCESS MODE by using the appropriate
Personal Identification Number (PIN) for this vehicle. PIN may be
obtained from the owner, vehicle's invoice, or from the manufacturer.
Select UPDATE THE SECRET KEY DATA. The data will be transferred from
Smart Key Immobilizer Module (SKIM) to the PCM.
NOTE: If 3 attempts are made to enter the SECURED ACCESS MODE using
the incorrect Personal Identification Number (PIN), the
SECURED ACCESS MODE will be locked out for one hour. To exit
this locked-out mode, leave ignition switch in the ON
position for one hour with all accessories turned off. It may
be necessary to monitor battery state and connect a battery
charger.
FWD CARS & FWD VANS
Transaxle Shift Quality Quick Learn Procedure (All FWD Cars
Except Avenger & Sebring Coupe, & All FWD Vans)
1) Transaxle shift quality quick learn procedure must be
performed to provide proper transaxle operation if any of the
following have been done:
* Vehicle battery was disconnected.
* Transaxle assembly was replaced.
* Transmission Control Module (TCM) was replaced.
* Solenoid assembly was replaced.
* Valve body was reconditioned or replaced.
2) Transaxle shift quality quick learn procedure must be
performed using Chrysler's Diagnostic Readout Box III (DRB-III) scan
tool. Following conditions must be met when performing transaxle shift
quality quick learn procedure:
* Brakes must be applied.
* Engine speed must be greater than 500 RPM.
* Throttle position sensor angle must be less than 3 degrees.
* Shift lever must remain in designated position until prompted
to shift to overdrive.
* Shift lever must remain in overdrive after the shift to
overdrive until scan tool indicates procedure is complete.
* Calculated oil temperature must be within 60-200
F
(16-93 C).
3) Connect scan tool to Data Link Connector (DLC) below
driver's side of instrument panel. For DLC location, see appropriate
SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
4) Go to TRANSMISSION display on scan tool. Go to
MISCELLANEOUS display on scan tool. Select QUICK LEARN PROCEDURE
display on scan tool. Follow instructions displayed on scan tool to
perform transaxle shift quality quick learn procedure. Remove scan
tool.
Transaxle Shift Quality Quick Learn Procedure (Avenger &
Sebring Coupe)
1) Transaxle shift quality quick learn procedure must be
performed to provide proper transaxle operation after replacing or
overhauling transaxle. After transaxle work is completed, clear any
Diagnostic Trouble Codes (DTCs) as necessary. Connect Chrysler's
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Diagnostic Readout Box III (DRB-III) scan tool to Data Link Connector
(DLC) below driver's side of instrument panel. For DLC location, see
appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
2) Select SPECIAL FUNCTION on scan tool. Set scan tool to
QUICK LEARN mode. Follow scan tool manufacturer's instructions to
perform transaxle shift quality quick learn procedure. Remove scan
tool.
Pinion Factor Procedure (All FWD Cars Except Avenger &
Sebring Coupe, & All FWD Vans)
1) Electronic pinion factor procedure must be performed to
provide proper speedometer operation if Transmission Control Module
(TCM) is replaced. If pinion factor procedure is not performed,
improper speedometer readings may exist or speedometer may not
operate. Pinion factor procedure must be performed using Chrysler's
Diagnostic Readout Box (DRB-III) scan tool.
2) Connect scan tool to Data Link Connector (DLC) below
driver's side of instrument panel. For DLC location, see appropriate
SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
3) Select TRANSMISSION system, MISCELLANEOUS functions, then
PINION FACTOR. Scan tool will now display tire size. If tire size is
incorrect, press ENTER key and select correct size. Press PAGE BACK
key to exit procedure.
Pinion Factor Procedure (Avenger & Sebring Coupe)
1) Transaxle uses rotation speed of output shaft to calculate
vehicle speed and cumulative distance travelled. Therefore, it is
necessary to input or update tire size into TCM memory after TCM has
been replaced or tire size has been changed.
2) Select SPECIAL FUNCTION on Chrysler's Diagnostic Readout
Box (DRB-III) scan tool. Set scan tool to PINION FACTOR mode. Input
tire size into TCM memory.
NOTE: New TCMs do not have tire size input into memory. TCM may
also be referred to as EATX module.
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COMPONENT LOCATIONS
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Component Location
ABS Control Module
Ram Pickup ....................... Left Side Of Engine Compartment
Ram Van/Wagon ...................................... Under Battery
Data Link Connector (DLC) ...... Lower Left Side Of Instrument Panel\
Output Shaft Speed Sensor (OSS) .......... Left Side Of Transmission\
Park/Neutral Position (PNP) Switch ....... Left Side Of Transmission\
Powertrain Control Module (PCM)
Dakota & Durango ............... Right Front Of Engine Compartment
Ram Pickup ............... Right Rear Corner Of Engine Compartment
Ram Van/Wagon ..................... Under Hood Next To Wiper Motor
Vehicle Speed Sensor (VSS) ........ On Transmission Or Transfer Case\
Extension Housing
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TROUBLE SHOOTING
ROAD TEST
Perform a road test to verify speed control malfunctions.
Ensure speedometer operation is smooth without flutter at all speeds.
Speedometer fluttering may cause surging in speed control system. For
speedometer diagnosis, see appropriate INSTRUMENT PANELS article. If
road test verifies a surge following speed control set and speedometer
operates smoothly, see OVERSHOOT/UNDERSHOOT FOLLOWING SPEED CONTROL
SET.
If road test verifies an inoperative system, and speedometer
operates smoothly, check for:
* Diagnostic Trouble Codes (DTCs). See SELF-DIAGNOSTIC
SYSTEM.
* Misadjusted brake switch. See BRAKE SWITCH under REMOVAL &
INSTALLATION.
* Poor electrical connections at servo.
* Leaking vacuum reservoir, check valve, hoses or connections.
See VACUUM SUPPLY under COMPONENT TESTS.
* Secure attachments of S/C servo cable.
* Smooth operation of throttle linkage.
* Defective PCM or wiring.
* Defective servo. See SPEED CONTROL SERVO under COMPONENT
TESTS.
To verify a speed control electronic malfunction, use scan
tool to check for DTCs. See SELF-DIAGNOSTIC SYSTEM. A speed control
malfunction may occur without setting a FTC. If no DTCs are stored, go
to CHECKING SPEED CONTROL OPERATION under SYSTEM TESTS.
OVERSHOOT/UNDERSHOOT FOLLOWING SPEED CONTROL SET
If operator repeatedly presses and releases set button with
their foot off accelerator (lift foot set) to begin speed control
operation, vehicle may accelerate and exceed desired set speed by 5
MPH and then decelerate to less than desired set speed before
achieving desired set speed.
Speed Control (S/C) has as adaptive strategy that compensates\
for variations in S/C cable lengths. When S/C is set with vehicle
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made.
* When using a jumper wire, ensure either jumper wire or
circuit is fuse-protected.
* Before disconnecting connector from any control module,
ensure ignition is off before removing connector.
* When checking voltage or continuity at any control module,
probe connector for control module from pin side. DO NOT
backprobe connector or probe wires through insulation.
* DO NOT cause short circuits when performing electrical tests.
This will set additional Diagnostic Trouble Codes (DTCs),
making diagnosis of original problem more difficult.
* Use specified test equipment when performing electrical
tests.
RETRIEVING DIAGNOSTIC TROUBLE CODES
NOTE: Self-diagnostic tests are written specifically for Chrysler's
Diagnostic Readout Box (DRB). If using a generic scan tool,
ensure it is OBD-II certified. A generic scan tool may not be
capable of performing all necessary test functions.
Ensure battery is fully charged. Turn ignition off. Connect
scan tool to Data Link Connector (DLC). DLC is located under left side\
of instrument panel. Turn ignition on. Using scan tool manufacturer's
instructions, record all DTCs displayed on scan tool. If ant DTCs are
retrieved, perform appropriate test under DIAGNOSTIC TESTS. Once all
repairs are made, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES.
If no DTCs are retrieved and fault still exists, go to CHECKING SPEED
CONTROL OPERATION under SYSTEM TESTS.
CLEARING DIAGNOSTIC TROUBLE CODES
Ensure ignition is off. Connect scan tool to DLC. Turn
ignition on. Using screen prompts on scan tool, erase DTCs from PCM.
DIAGNOSTIC TESTS
FTC P0720: LOW OUTPUT SPEED SENSOR (OSS) RPM MORE THAN 15 MPH
FTC P0720 will set if output shaft speed is less than 60 RPM
for 2.6 seconds when vehicle speed is more than 15 MPH.
Possible Causes:
* Defective Output Speed Sensor (OSS).
* OSS signal circuit open or shorted.
* OSS ground circuit open or shorted.
* Park/Neutral Position (PNP) switch FTC present.
* Defective PNP switch.
* Defective PCM.
1) Turn ignition on. Using scan tool, read DTCs. If FTC
specific good trip is displayed and equal to zero, go to next step. If
FTC specific good trip is equal to more than zero, go to step 13).
2) If there are any Park/Neutral Position (PNP) switch DTCs,\
repair PNP switch FTC first. Perform TEST VER-5A under VERIFICATION
TESTS. If there are no PNP switch DTCs, go to next step.
3) Using scan tool, read PNP switch state. While observing
scan tool, shift transmission through all positions. If scan tool did
not display P/N and D/R in correct positions, repair PNP switch or
circuit as necessary. Perform TEST VER-5A under VERIFICATION TESTS. If