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- TRANSMISSION - 4R70W - ENGINE IN LIMITED OPERATING STRATEGY WHEN TRANSMISSION TESTER IS USED - SERVICE TIP
| Publication Date: SEPTEMBER 25, 1995 |
| 1996 CROWN VICTORIA, MUSTANG, THUNDERBIRD |
| 1996 COUGAR, GRAND MARQUIS, MARK VIII, TOWN CAR |
| 1996 E-150, F-150 |
When the transmission tester is used to diagnose any transmission concern, the Powertrain Control Module (PCM) will consider this an "open" circuit and cause the engine to operate in Limited Operating Strategy (LOS). Do not use the transmission tester to perform the dynamic test on these vehicles. This condition will exist when the vehicle wiring harness is disconnected from the transmission for any reason or if the PCM detects an "open" or "short" in the Electronic Pressure Control (EPC) circuit.
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