Instead of boring you with a long post, I figured I'd try something different to solicit help for my misbehaving transmission.
Year: 1997
Trans: AW4
Fluid: Dexron VI replaced w/filter 10k miles ago
Symptoms: Works fine for 20 minutes. After 4th gear rarely engages. Even going down hill it will not upshift shift. TC also stops locking.
Codes: None currently, but in the past has:
Attempted Repairs:
Theory: I have one, but I want to get unbiased opinions first.
Year: 1997
Trans: AW4
Fluid: Dexron VI replaced w/filter 10k miles ago
Symptoms: Works fine for 20 minutes. After 4th gear rarely engages. Even going down hill it will not upshift shift. TC also stops locking.
Codes: None currently, but in the past has:
- P0300: Random/Multiple Cylinder Misfire Detected
- P0304: Cylinder 4 Misfire Detected
- P0306: Cylinder 6 Misfire Detected
- P0700: Powertrain - Transmission Control System MIL request
- P1898: Powertrain
- Unplugged TCM & can shift manually
- TCM test
Code:
Function PIN PIN Selector Spec Result
Ground 24 Ground P <1 Ω <1 Ω
CCD Bus (-) 6 7 P 60 Ω 60 Ω
TC Lock Solenoid 11 24 P 11-15 Ω 13 Ω
Solenoid A 12 24 P 11-15 Ω 13 Ω
Solenoid B 13 24 P 11-15 Ω 13 Ω
IOD Fuse 25 24 P 11.09v
Ign Switch output 26 24 P 11.09v
Gear Sel R Input 18 24 R 10.07v
Gear Sel D Input 22 24 D 11.09v
Gear Sel 3 Input 9 24 3 11.09v
Gear Sel 1-2 Input 21 24 1-2 11.09v
TPS input 17 16 P, Idle .26-.95v .82v
TPS input 17 16 P, WOT <4.49v 1.6v
CCD Bus (-) 6 24 P 2.51v 2.36v
CCD Bus (+) 7 24 P 2.49v 2.36vAttempted Repairs:
- TPS replaced
- TV cable adjusted
Theory: I have one, but I want to get unbiased opinions first.
