P0721

Electronic Automatic Transmission Output Shaft Speed Sensor.

P0721 - Output shaft speed sensor fault: Value is too high

Possible causes:
1. Connectors C1835, C0244.
2. Circuit integrity C1835/13 (W) - C0244/1 (W).
3. Circuit integrity C1835/3 (N) - C0244/10 (N).
4. Gearbox Output Shaft Speed Sensor.
5. Electronic Automatic Transmission ECU.

1. Connectors C1835, C0244.
CONNECTOR
Check for connector not correctly latched, backed out pins, damaged pins, corroded pins

2. Circuit integrity C1835/13 (W) - C0244/1 (W).
CIRCUIT_INTEGRITY
Check for open circuit, short circuit to ground, supply or other circuit, damaged or unlatched connector, intermediate connectors or headers

3. Circuit integrity C1835/3 (N) - C0244/10 (N).
CIRCUIT_INTEGRITY
Check for open circuit, short circuit to ground, supply or other circuit, damaged or unlatched connector, intermediate connectors or headers

4. Gearbox Output Shaft Speed Sensor.
No detail available for this fault

5. Electronic Automatic Transmission ECU.
No detail available for this fault