P1362 - FAULT CODE - OBD2

P1362 ACURA, HONDA: TOP DEAD CENTER 1 SENSOR NO SIGNAL

P1362 ISUZU: TDC SENSOR NO SIGNAL

The correct and smooth operation of the different internal components of an engine depends on a starting point, that is why the Top Dead Center (TDC) sensor is used, which controls this point.

In the past, engines marked the TDC on a harmonic balancer, so that the mechanic could assemble the engine and adjust the cylinder head valves. In contrast, in modern engines, although assembled using the same precision, it is the TDC sensor that is responsible for monitoring the firing sequence of all cylinders. This sensor determines the ignition timing and starting when the crankshaft angle is abnormal.

When the Top Dead Center 1 sensor malfunctions, a DTC code will be set that references the situation. Honda and Acura manufacturers use the code P1362 OBD2, to indicate that the sensor has a permanent loss of its signal.

• Check Engine lamp illuminates.
• Unable to start the engine.
• Engine malfunctions.

The P1362 OBDII diagnostic code is set by one or more of the following:

• TDC Sensor 1 wiring or connectors could be faulty.
• Possibly the Top Dead Center Sensor 1 has bad electrical connections.
• Top Dead Center Sensor 1 could be defective.

To troubleshoot the P1362 OBD2 fault code, consider the following:

• To start the diagnosis, we recommend you consult the Technical Service Bulletins.
• Verify the good condition of the wiring and connectors related to the TDC Sensor. If you detect common deficiencies in these, make the necessary repairs or changes.
• Perform voltage checks on the Top Dead Center Sensor These should be within the parameters indicated by the manufacturer, otherwise, you may find an open or shorted circuit. Correct it as applicable.
• If you do not discover deficiencies in the electrical components, check the pulley for excessive play. If this value is greater than 0.5 mm, the malfunction may be due to it. In this case, replace the cylinder head.
• Check the condition of the TDC sensor. If you determine that the TDC sensor is defective, replace it.