P0750

Test 280 - 285:

Test 286 - 289:

Test 290 - 291:

Symptom:
P0750-L-R SOLENOID CIRCUIT

When Monitored:
Ignition key is turned from the OFF to RUN position and/or key is turned from the CRANK to the RUN position, then every 10 secs thereafter, or when a speed ratio or pressure switch error occurs. All 4 solenoids are tested for continuity continuously.

Set Condition:
If a solenoid is On, power is momentarily interrupted, then reenergized. If solenoid is Off, power is momentarily energized, then deenergized. If an inductive spike is not sensed by the TCM, it is retested. If the solenoid fails 4 times the code sets.

POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE CAUSING SYMPTOM
TCM PIN 53 TO GND OPEN
TCM PIN 57 TO GND OPEN
TCR OUTPUT (SWITCHED B+) OPEN
L-R SOLENOID CONTROL CKT SHORT TO GROUND
SOLENOID CNTRL CKT TO SOLENOID CONNECTOR OPEN
L-R SOLENOID SHORTED IN SOLENOID PACK
TCM OPEN GROUND DEFAULT
TRANSMISSION SOLENOID PACK OPEN (L-R SECTION)
INTERMITTENT CODE P0750