| 214 - ELECTRICAL ROUTINE |
| Powertrain Control System |
- Electrical inputs/outputs, vehicle wiring harness, internal transmission wiring harness, PCM, EPC, OSS, TFT, RPM, Digital TR, TP and MAF
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| 314 - HYDRAULIC/MECHANICAL ROUTINE |
| Fluid |
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- Adjust fluid to correct level.
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| Incorrect Pressures |
- Incorrect band/clutch application pressures, line pressure high
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- Check line pressure at tap. Carry out line pressure and stall speed tests. Refer to the LINE PRESSURE CHART for specifications. If pressure is high, check the following possible component: main control.
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| Main Control Assembly |
- Screw out of torque specification
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- Tighten to specification.
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- Gasket damaged, off location
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- Inspect and install a new gasket.
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- Inspect for damage. Repair as required.
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- TCC, EPC, solenoid stuck, damaged, O-ring damaged or out of bore
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- Inspect for damage. Carry out solenoid function test as listed in electrical routine. Repair as required.
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- Forward modulator valve/EPC boost valve (207), pressure boost valve/main regulator or valve (208), spring, damaged, missing, misassembled, stuck, bore damaged
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- Inspect for damage. If damaged, install a new main control. If parts are missing, install new parts or main control. If misassembled, reassemble correctly. Do not stone, file or sand valves. This will remove the anodized finish and may result in further main control or transmission damage.
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- Wrong component used in rebuild
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- Verify that correct components were used.
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| Front Band and Servo Assemblies |
- Band adjustment incorrect
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- Readjust to correct specification.
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- Seal or piston, strut, lever, damaged
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- Inspect for damage. Repair as required.
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- Friction elements worn damaged misassembled
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- Inspect for damage. Repair as required.
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- Return spring wrong, damaged
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- Inspect for damage. Repair as required.
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- Piston rod lever incorrect
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- Inspect for damage. Repair as required.
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- Case bore damaged, leaking
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- Inspect for damage. Repair as required.
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| Intermediate Band and Servo Assemblies |
- Band adjustment incorrect
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- Readjust to correct specification.
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- Seal or piston, strut, lever, damaged
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- Inspect for damage. Repair as required.
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- Friction elements worn damaged misassembled
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- Inspect for damage. Repair as required.
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- Return spring wrong, damaged
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- Inspect for damage. Repair as required.
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- Piston rod lever incorrect
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- Inspect for damage. Repair as required.
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- Case bore damaged, leaking
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- Inspect for damage. Repair as required.
- Refer to the following shift routine(s) for further diagnosis:
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