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7A2-64 TRANSMISSION CONTROL SYSTEM (JR405E) DTC P0763 (Flash Code 33) Circuit Description The high clutch solenoid valve controls fluid acting on Condition for Running the DTC • The ignition switch is ON. Condition for Setting the DTC • The TCM detects an open circuit or short circuit on the high clutch solenoid valve control circuit. Action Taken When the DTC Sets • The TCM blinks the Check Trans lamp when the diagnostic runs and fails. During the vehicle running; • The TCM holds the last gear position when the diagnostic runs and fails. • The TCM stops high clutch solenoid valve. • The TCM inhibits lock up control. After the vehicle stopped; • The TCM stops all shift solenoid valves and fixes to the 3rd gear. If a fail-safe valve problem is • The TCM stops PC solenoid valve. Condition for Clearing the DTC • The TCM turns OFF the Check Trans lamp when the diagnostic runs and does not fail at next • A current DTC clears when the diagnostic runs and does not fail at next ignition cycle. Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section. • Use the Clutch, Brake, Solenoid and Pressure Switch Logic table to verify each component works Schematic Reference: Transmission Controls Circuit/ System Testing DTC P0763 Step Action Value(s) Yes No 1 Did you perform the Diagnostic System Check - — Go to Step 2 Go to Diagnostic System Check - Transmission Controls 2 1. Install a scan tool. 2. Turn OFF the ignition for 30 seconds. 3. Lift the driving wheels or drive the vehicle Is DTC P1875 also set? — Go to DTC P1875 Go to Step 3 3 1. Park the vehicle. 2. Turn ON the ignition, with the engine OFF. 3. Perform the High Clutch Solenoid control with 4. Command the solenoid valve ON and OFF. Does the high clutch solenoid valve click with each — Go to Diagnostic Aids Go to Step 4 |