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z The engine is not in fuel cutoff. z The gear range is D4. z The TP angle is greater than 10 percent. z The transmission fluid temperature is 20-130°C (68-266°F). z The transmission output speed is 150 RPM or greater. z The transfer case ratio in 4WD low is 0.9-1.2. z The transfer case ratio in 4WD high is 2.6-2.85. Conditions for Setting the DTC DTC P0752 sets if both of the following conditions occur twice: Condition 1 z The PCM commands second gear for 1 second. z The estimated gear ratio is 3.0-3.3. z The engine torque is 34-542 N.m (25-400 lb ft). z All conditions are met for 2 seconds. Condition 2 z The PCM commands third gear for 1 second. z The estimated gear ratio is 0.65-0.9. z The engine torque is 67-542 N.m (50-400 lb ft). z All conditions are met for 3 seconds. Action Taken When the DTC Sets z The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which z The PCM inhibits 4th gear in Hot Mode. z The PCM commands D2 line pressure. z The PCM inhibits 3-2 downshifts if the vehicle speed is greater than 48 km/h (30 mph) or greater. z The PCM freezes transmission adapt functions. z The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM z The PCM stores DTC P0752 in PCM history. Conditions for Clearing the MIL/DTC z The PCM turns OFF the MIL during the third consecutive trip in which the diagnostic test runs and
2004 Hummer H2 2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E Diagnosis (DTC P0218 To DTC P2771) - Hummer H2
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