Dodge Dakota (R1). Manual — part 892
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Connect a 0 - 2068 KPa (0 - 300 PSI) pressure gauge to the Overdrive Clutch test port.
Connect another 0 - 2068 KPa (0 - 300 PSI) pressure gauge to the Governor Pressure
test port.
Start the engine and allow the transmission temperature to rise to normal operating
temperature.
Caution: Apply the parking brake.
Place the gear selector in Drive.
While observing the pressure gauges, select 4th gear from Gov and 3-4 Shift Valve
Test with the DRBIII
t.
Note: The governor pressure should rise to above 138 KPa (20 PSI). Shortly
after this, the O/D pressure should rise to above 276 KPa (40 PSI).
Did the pressure act as described?
All
Yes
→
No
→
5
Turn the ignition off.
Remove the transmission oil pan and inspect for excessive debris and burnt oil.
Is the oil burnt or does the transmission oil pan contain excessive debris?
All
Yes
→
Repair the internal transmission problem in accordance with the
Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
6
Turn the ignition off.
Replace 3-4 Shift Solenoid.
Connect a 0 - 2068 KPa (0 - 300 PSI) pressure gauge to the Overdrive Clutch test port.
Connect another 0 - 2068 KPa (0 - 300 PSI) pressure gauge to the Governor Pressure
test port.
Start the engine and allow the transmission temperature to reach normal operating
temperature.
Caution: Apply the parking brake.
Place the gear selector in Drive.
While observing the pressure gauges, actuate the 3-4 Shift Solenoid with the DRB.
Note: The governor pressure should rise to above 138 KPa (20 PSI). Shortly
after this, the O/D pressure should rise to above 276 KPa (40 PSI).
Did the pressure act as described?
All
Yes
→
Test Complete.
No
→
Overhaul the Transmission in accordance with the Service Infor-
mation. Pay extra attention to Seals and Clutches related to the
OD Clutch.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
300
TRANSMISSION
P0783-3-4 SHIFT SOL, NO RPM DROP AT LOCKUP —
Continued
TEST
ACTION
APPLICABILITY
7
At this time, the conditions required to set the DTC are not present.
Note: Use the Freeze Frame Data to help duplicate the conditions that set
the DTC. Pay particular attention to the DTC set conditions, such as, VSS,
MAP, ECT, and Load.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any technical service bulletins that may apply.
Note: The vehicle must be driven (road load) to set this code. Drive the
vehicle 4 times from 0 to 89 kmh (0 to 55 MPH) with a constant 20 % throttle
position through all gears. Stop the vehicle, shut the engine off and then
repeat the procedure.
Were any problems found?
All
Yes
→
Repair as necessary.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
Test Complete.
301
TRANSMISSION
P0783-3-4 SHIFT SOL, NO RPM DROP AT LOCKUP —
Continued
Symptom:
P1756-GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI
When Monitored and Set Condition:
P1756-GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI
When Monitored:
Continuously with the key on and the engine running.
Set Condition:
This code will set if the gov press sensor output is < 103 KPa (15 PSI) or
> 207 KPa (30 PSI) when the requested pressure is 138-172 KPa (20-25 PSI) for 2.2
seconds. Two trips of five consecutive bad 2.2 second tests with sump temp 10-127°C
(50-260°F).
POSSIBLE CAUSES
OTHER TRANSMISSION DTC’S
INTERMITTENT GOVERNOR PRESSURE SOLENOID
CHECK TRANS FLUID LEVEL AND CONDITION
5 VOLT SUPPLY CIRCUIT OPEN
GOV PRESSURE SENSOR SIGNAL CIRCUIT OPEN
SENSOR GROUND CIRCUIT OPEN
GOV PRESS SENSOR SIGNAL CKT SHORT TO GND
GOV PRESS SENSOR SIGNAL CKT SHORT TO SENSOR GND
GOV PRESS SENSOR SIGNAL CKT SHORT TO VOLTAGE
5 VOLT SUPPLY CIRCUIT OPEN INSIDE TRANS
GOV PRESS SENSOR GROUND CKT OPEN INSIDE TRANS
GOV PRESS SENSOR SIGNAL CKT OPEN INSIDE TRANS
GOV PRESS SENSOR SIGNAL CKT SHORT TO GND INSIDE TRANS
GOV PRESS SENSOR SIGNAL CKT SHORT TO SENSOR GND INSIDE TRANS
GOV PRESS SENSOR SIGNAL CKT SHORT TO VOLTAGE INSIDE TRANS
OIL BURNT OR OIL PAN HAS EXCESSIVE DEBRIS
VALVE BODY
GOVERNOR PRESSURE SENSOR
INTERNAL TRANSMISSION
PCM - 5 VOLT SUPPLY
PCM - GOV PRESSURE NOT EQUAL TO TARGET
302
TRANSMISSION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTCs.
Note: The Transmission Control Relay may be removed during this test, this
will set other codes. They can be disregarded.
Is the Trip Counter for P1756 displayed and equal to 0?
All
Yes
→
No
→
2
Turn the ignition on.
With the DRBIII
t, read DTCs.
Are any other transmission DTCs present?
All
Yes
→
Repair all other transmission DTCs before proceeding.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
3
Start the engine.
Allow the transmission to reach normal operating temperature.
Check the transmission fluid level and condition. Refer to the Service information.
Is the fluid level correct and the fluid condition OK?
All
Yes
→
No
→
Repair as necessary the transmission fluid level and condition.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
4
Caution: Apply the parking brake.
Start engine.
Warm the engine to normal operating temperature.
With the DRBIII
t, read the governor pressure.
Caution: Apply the brakes.
Place the gear selector in Drive.
Is the governor pressure above 21 KPa (3 PSI)?
All
Yes
→
No
→
5
Turn the ignition off.
Install a pressure gauge at the governor pressure test port.
Caution: Apply the parking brake.
Start the engine.
Warm the engine to normal operating temperature.
Caution: Apply the brakes.
Place the gear selector in Drive.
Read the governor pressure on the gauge in Drive.
Is the governor pressure on the gauge below 34 KPa (5 PSI)?
All
Yes
→
No
→
303
TRANSMISSION
P1756-GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI —
Continued
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст