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DTC P0733 IMPROPER SHIFTING TO 3RD GEAR POSITION AT-281 [RE4R01A] D E F G H I J K L M A B AT DTC P0733 IMPROPER SHIFTING TO 3RD GEAR POSITION PFP:31940 Description ECS007MR ● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis. ● This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis ● This malfunction is detected when the A/T does not shift into third gear position as instructed by the TCM. TCM TERMINALS AND REFERENCE VALUE Remarks: Specification data are reference values. ON BOARD DIAGNOSIS LOGIC This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as *: P0733 is detected. Gear position 1 2 3 4 Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed) Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open) Terminal No. Wire color Item Condition Judgement stan- dard (Approx.) 11 L/W Shift solenoid When shift solenoid valve A oper- 1 or D 4 ) Battery voltage When shift solenoid valve A does not 2 or D 3 ) 0V Gear position supposed by TCM 1 2 3 4 In case of gear position with no malfunctions 1 2 3 4 In case of gear position with shift solenoid valve A stuck 1 1 4* 4 Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause) : A/T 3RD GR FNCTN A/T cannot be shifted to the 3rd gear posi- ● Shift solenoid valve A ● Each clutch ● Hydraulic control circuit : P0733 |