po685 fault code What Does the P0685 Code Mean The diagnostic trouble code DTC P0685 stands for ECM PCM Power Relay Control Circuit Open The PCM regularly checks the voltage condition in the power relay control circuit that delivers battery voltage to the ECM PCM If the computer sees a low voltage or no voltage condition in the circuit
Since the code P0685 is usually accompanied by a no start condition ignoring it will not likely be an option If this code is present and the engine will start and run suspect a faulty PCM or a PCM programing error Causes Potential causes for this code to set are A defective PCM power relay A blown fuse or fusible link P0685 Code Engine Control Module Power Relay Control Circuit Open How to Fix Check the Possible Causes listed above Visually inspect the related wiring harness and connectors Check for damaged components and look for broken bent pushed out or corroded connector pins Search for P0685 Questions and Answers
po685 fault code
po685 fault code
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Electrical Interpreting ABS DSC Fault Code Motor Vehicle
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OBD II Fault Code List Reference
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What causes the P0685 code As with any trouble code there could be a wide variety of potential causes One of the most common is simply a bad PCM relay Other possibilities include a blown fuse a shorted circuit a faulty connection battery problems such as a cable defect and rarely a bad PCM or ECM What are the symptoms of the P0685 code OBD II Code P0685 means that there is a problem with the engine computer PCM power relay control circuit causing incorrect voltage signal from the power r
The meaning of fault code P0685 is ECM PCM Power Relay Control Circuit Open Find out what exactly this means the symptoms and causes of the code P0685 and how to fix the malfunction Most viewed car repair videos What Does Code P0685 Mean OBD II fault code P0685 is a generic code that is defined as ECM PCM power relay circuit open and is set when the PCM Powertrain Control Module detects that its own power supply has failed or if it detects a low voltage in the circuit that supplies it with power
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The P0685 code indicates a problem with the ECM PCM power relay control circuit The ECM PCM Engine Control Module Powertrain Control Module is responsible for controlling various functions of the vehicle including the engine and transmission A faulty relay can cause the P0685 code to appear Use a digital multimeter to check the resistance of the relay If the resistance is out of spec replace the relay and retest By following these diagnostic steps you can
OBD2 Diagnostic Trouble Code P0685 means that ECM PCM Power Relay Control Circuit Open has been detected Carly Universal Scanner iOS and Android enabled All car brands supported 14 day money back guarantee on the scanner Lifetime warranty with premium customer support Buy now How Serious Is the Code P0685 Discover the causes and fixes for the P0685 Honda trouble code indicating an ECM PCM Power Relay Control Circuit Malfunction Also learn about common symptoms and how it may affect models like Honda Accord and Civic
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po685 fault code - If your OBD II equipped vehicle has stored code P0685 it means that the control unit has detected an open circuit going to the ECM PCM main power relay That is the transmission control module has detected that its own power supply has failed Most PCM power circuits are relatively simple and straightforward