Action Taken When the DTC Sets

P2728

• DTC P2728 is a Type C DTC.
• The TCM freezes transmission adaptive functions.

P2729

• DTC P2729 is a Type A DTC.
• The TCM freezes transmission adaptive functions.
• The TCM commands maximum line pressure.
• The TCM inhibits TAP Up/Down function.
• The TCM inhibits engine braking.
• The TCM inhibits neutral idle.
• The TCM cancels Tow/Haul mode function.
• The TCM inhibits auto grade braking.
• The TCM commands neutral gear if output speed sensor signal is 1,350 RPM or greater.
• The TCM commands 2nd gear if output speed sensor signal is less than 1,350 RPM.

P2730

• DTC P2730 is a Type A DTC.
• The TCM forces TCC OFF.
• The TCM commands maximum line pressure.
• The TCM inhibits TAP Up/Down function.
• The TCM turns OFF the high side driver.
• The TCM inhibits engine braking.
• The ECM commands a reduction in engine torque based on input form the speed sensor.
• The TCM inhibits neutral idle.
• The TCM inhibits manual shifting.
• The TCM inhibits auto grade braking.
• The TCM inhibits Tow/Haul function.