Error Code P0616 is defined as Starter Relay Circuit Low. This is caused by abnormal reading from the starter relay circuit due to a blown fuse or defective ignition switch.
This is a generic trouble code, meaning it applies to all cars equipped with the OBD-II system, particularly those made since 1996 up to present. It commonly applies, but not limited to cars from Acura, Buick, Cadillac, Chevrolet, Ford, GMC, Honda, Infiniti, Mazda, Nissan, Peugeot, and Subaru. Specifications on the definition, troubleshooting, and repairs, of course, vary depending on make, model, and powertrain configuration.
The job of the Starter Relay Circuit is to provide a power source to the starter to crank and start the engine. Depending on the specific 2012 Mitsubishi Eclipse spyder and its drivetrain configuration, there can be multiple components involved in this process. It starts at the battery, includes ignition switch, fuses, starter solenoid, starter relay, and multiple safety devices, such as clutch position sensor and the neutral safety switches.
Error Code P0616 is associated with the Starter Relay Circuit, which in most circumstances, causes your 2012 Mitsubishi Eclipse spyder to not start. This code happens when the PCM (powertrain control module, also known as ECM or engine control module in other 2012 Mitsubishi Eclipse spyder makes) sees a malfunction within the starter relay circuit (also referred as Ignition Switch Circuit in other 2012 Mitsubishi Eclipse spyder makes). Many codes can be set when the PCM detects improper signals within the starter relay circuit, based on their specific malfunction.
This particular code happens when the PCM determines a low voltage condition in the starter relay circuit.
Other related codes include:
There will be no drivability symptoms for this code. Aside from illuminating the Check Engine light and registering the code, common symptoms for this problem include:
There are many reasons for this code to appear, the most common causes are:
As with most diagnosis, the first step for troubleshooting this code is to research it with the TSB (Technical Service Bulletins) for the specific year, model, and power plant. This usually provides the best solution.
Next is to consult with the specific tech data for your 2012 Mitsubishi Eclipse spyder and see if a fuse is incorporated into the starter relay circuit, and check whether it’s blown if applicable. If the fuse is in good shape, then find all components associated with the starter relay circuit and check for obvious signs of damage.
Then, perform a thorough visual inspection and check all associated wirings for apparent signs of damage, such as bare wires caused by running, scraping, or burnt spots.
Next, check the connectors and connections for security; look for signs of corrosion and damaged pins. The whole process should include all wiring connectors and connections to the battery, PCM, ignition switch, starter, starter relay, and starter solenoid.
Advanced steps for diagnosis vary from one 2012 Mitsubishi Eclipse spyder to another and may require specific advanced equipment and tools, such as a digital multi-meter, and specific technical references for your 2012 Mitsubishi Eclipse spyder. Voltage requirements also vary based on the specific year and model of your 2012 Mitsubishi Eclipse spyder.
Battery voltage should be around 12V, and the starter should have battery voltage with the ignition switch in the start position. The presence of voltage with the starter not engaging is a sign of a defective starter or starter solenoid. The lack of voltage means the ignition switch is faulty, or there’s a problem with the wiring.
If this process determines the absence of a power source or ground, then perform a continuity test to check the integrity of the wiring, ignition switch, and other components. Continuity test must be performed with the power removed from the circuit while reading for wiring and connections must be at 0 ohms of resistance, unless otherwise specified in the technical data of your 2012 Mitsubishi Eclipse spyder. Resistance or no continuity means there’s a faulty wiring problem (open or short) and must be repaired or replaced.
Depending on the diagnosis, repairs for this code include:
The most common mistake when addressing this code is replacing the starter or PCM when the damage is in the wiring or other components. Thus, it’s extremely important to conduct a thorough diagnosis before replacing anything to avoid unnecessary replacements of parts.