TEST
ACTION
APPLICABILITY
2
When monitored: Continually while the vehicle is at high vehicle speeds and higher
engine load conditions.
When set: The gear ratio is incorrect for the current gear requested. The vehicle must
be driven on the road to set the DTC. This DTC will not set on the hoist.
This is the When monitored / When set conditions for DTC P0756.
All
Continue
Go To
3
3
With the DRBIII
t, erase DTC’s.
Test drive the vehicle.
Maintain a steady speed of 55 MPH for 30 seconds.
Bring the vehicle slowly to a complete stop.
NOTE: Check shift patterns while the vehicle is upshifting and downshift-
ing.
Did the transmission hang in 1st gear or launch in 4th gear during the test drive?
All
Yes
→
Go To
4
No
→
Go To
9
4
With the DRBIII
t, read TCM DTC’s.
Is the P0122 TCM TPS DTC present?
All
Yes
→
Refer to the Transmission category and perform the appropriate
TCM Throttle Position DTC diagnostic before continuing.
Perform AW4 TRANS VERIFICATION TEST-VER1.
No
→
Go To
5
5
With the DRBIII
t, read PCM DTC’s.
Are there any PCM TPS DTC’s present?
All
Yes
→
Refer to the Driveability category and perform all the appropriate
PCM Throttle Position DTC’s diagnostic’s before continuing.
Perform AW4 TRANS VERIFICATION TEST-VER1.
No
→
Go To
6
6
With the DRBIII
t, read TCM DTC’s.
Is the DTC P1746 and/or P1747 present?
All
Yes
→
If P1746 or P1747 are present refer to the transmission category
and perform the appropriate symptom. If both DTC’s are present
perform test P1747 first. If the problem is still present, perform
the diagnostic test P1746.
Perform AW4 TRANS VERIFICATION TEST-VER1.
No
→
Go To
7
7
Turn ignition off to the lock position.
Remove the transmission oil pan per the service information.
Inspect the pan and fluid for excessive debris or friction material.
Is the oil burnt and/or does the pan contain excessive debris or friction material.
All
Yes
→
Repair internal transmission problem.
Perform AW4 TRANS VERIFICATION TEST-VER1.
No
→
Go To
8
41
TRANSMISSION
P0756-SOLENOID B FUNCTIONAL FAULT —
Continued