This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0976 Shift Solenoid Valve "B" Circuit Low
P0977 Shift Solenoid Valve "B" Circuit High
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
Test-drive under following conditions:
DTC
Test-drive condition
P0976
-1.
Start the engine, and warm it up to normal operating temperature (the radiator fan comes on twice).
-2.
Test-drive the vehicle in D position/mode on a flat road at speeds about 37 mph (60 km/h) for at least 10 seconds.
P0977
-1.
Shift the transmission to P position/mode.
-2.
Start the engine, and wait for at least 10 seconds.
?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0976 Shift Solenoid Valve "B" Circuit Low
P0977 Shift Solenoid Valve "B" Circuit High
Is DTC P0976 or P0977 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between shift solenoid valve B and the TCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
Determine possible failure area (TCM, short in SOL B line, open in SOL B/SHB+ line):
Determine possible failure area (TCM, short in SOL B line, open in SOL B/SHB+ line)
Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM, then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM.?
