I have PO500 speed sensor malfunction and a P1791 manufacturer control transmission rec faults. Symtoms: Engine light on, D blinks once in a while and Speedometer works sometimes.

These codes appear to relate to your throttle poistion sensor(s) - check your throttle cable linkages and in particular the position sensor on the throttle body.

P0501 - Vehicle Speed Sensor (G22): Implausible Signal Possible Causes

• Wiring/Connectors from/to Vehicle Speed Sensor (G22) faulty
• Wiring/Connectors from Transmission Control Module (J217) to Engine Control Module faulty
• Vehicle Speed Sensor (G22) faulty
• Malfunctioning Left Front wheel speed sensor (in vehicles that don't use a physical G22 sensor)

Possible Solutions

• Check Wiring/Connectors from/to Vehicle Speed Sensor (G22)
• Check Wiring/Connectors from Transmission Control Module (J217) to Engine Control Module
• Check Vehicle Speed Sensor (G22)
• Check ABS Brakes for faults and diagnose malfunctioning Left Front wheel speed sensor if applicable

Category:

• Fault Codes

You could try that first but it could also be a wiring problem.
Usually when the sensor fails your speedo stops working.

code p 500 refers to vehicle speed sensor (VSS) --circuit malfunction====causes ---wiring---VSS sensor---ECM
the engine light reports serious faults with both the engine and the transmission
I would go to an accredited auto transmission shop and have the VSS replaced or checked
The VSS drives the speedo, cruise control,gear changes ( reports to the transmission control module (TCM)

The code P1791 is referring to the electrical system on the vehicle. P1791-(Electrical) Circuit Malfunction. It means that you have a problem within the electrical circuit on that particular system. With Honda and many other vehicles it Usually Points Toward the (Vehicle Speed Sensor Range OR Performance Problem. You'll need to check the wiring for shorts or grounding out somewhere on the engine or frame. You'll also need to check the connector itself for broken wires or pin-push-outs. This problem could be the "Vehicle Speed Sensor" OR problems within the transmission itself. Hope this helps. Have an awesome day!

EOBD II Error Code: P0117
Fault Location:
Engine Coolant Temperature (ECT) Sensor (G62) - Low Input
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.

EOBD II Error Code: P0340
Fault Location:
Camshaft Position (CMP) Sensor A (G40), Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Wiring from/to Camshaft Position Sensor (CMP) faulty.
Camshaft position (CMP) sensor faulty.
Timing misaligned.
Possible Solutions:
Check Wiring from/to Camshaft Position Sensor.
Check Camshaft Position Sensor.
Check Timing.

EOBD II Error Code: P0500
Fault Location:
Vehicle Speed Sensor (VSS) - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Non Emission Fault - No warning light.
Wiring.
Vehicle speed sensor (VSS).
Engine control module (ECM).

P1512 Throttle Position Sensor Idle Switch Sense Circuit

P1513 Throttle Position Sensor Idle Switch Sense Circuit

P1514 Park/Neutral Position Switch High Load Neutral/Drive

P1516 Gear Change Park/Neutral Malfunction

P1517 Engine Cranking Park/Neutral Malfunction

P1607 MIL Output Circuit

P1608 Automatic Transmission

P1609 Internal ECM Error

P1641 Fuel Pump Relay No. 1

P1646 Fuel Pump Relay No. 2

P1739 Automatic Transmission

P1775 Transmission Control Module MIL Circuit

P1776 Torque Reduction Request Signal

P1777 Torque Reduction Circuit

P1780 Automatic Transmission

P1781 Automatic Transmission

P1782 Automatic Transmission

P1783 Automatic Transmission

P1785 Automatic Transmission

P1790 Automatic Transmission

P1791 Automatic Transmission

P1792 Automatic Transmission

P1794 Automatic Transmission
P1796 Automatic Transmission
as you can no such code exists for a jaguar ,contact code reader manufacturer

The VSC and trac will shut off with a P0500 or P0705 code, so diagnose those first. You left out year and engine, so we can't look up most common failures.

po500 is vehicle speed sensor,-this means that the speed sensor is bad or you have a wiring problem in the sensor curcuit. p1764 means that the sensor could be bad on transmission, it is manufacturer control transmission, fix the speed sensor and then maybe the light will go out for transmission sensor. best of luck carl,

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