P0791
P0791. INTERMEDIATE SPEED SENSOR MALFUNCTION (FROM VIN C 79329)CHECK THE INTERMEDIATE SPEED SENSOR GROUND CIRCUIT.
1. Disconnect the transmission electrical connector, JB155.
2. Measure the resistance between JB155, pin 03 (B) and GROUND (shielded cable).
^ Is the resistance greater than 5 ohms?
REPAIR the high resistance circuit.
-> No
CHECK THE INTERMEDIATE SPEED SENSOR GROUND CIRCUIT FOR CONTINUITY.
1. Disconnect the TOM electrical connector, JB131.
2. Measure the resistance between JB155, pin 03 (B) and JB131, pin 46 (B).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit.
-> No
CHECK THE INTERMEDIATE SPEED SENSOR SIGNAL WIRE FOR CONTINUITY.
1. Measure the resistance between JB155, pin 4 (N) and JB131, pin 21 (N).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit.
-> No
CHECK THE RESISTANCE OF THE INTERMEDIATE SPEED SENSOR.
1. Measure the resistance between JB155, pin 13 and pin 04 at the transmission.
^ Is the resistance 550 ohms?
-> Yes
Contact dealer technical support for advice on possible module failure.
-> No
INSTALL a new transaxle. CLEAR the DTC. TEST the system for normal operation.