P1586

DTC P1586 (23): MPI Module Current Signal/ Battery Current Signal Circuit Problem
1. Reset the MCM.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON (II).
Is DTC P1580 or P1629 indicated?
YES - Do the troubleshooting for DTC P1580 or DTC P1629 and recheck.
NO - Go to step 4.
4. Reset the MCM.
5. Turn the ignition switch OFF.
6. Start the engine. Raise the speed to 4,000 rpm with no load (in Park or neutral) until the battery level gauge is above 2/3 charged.
7. Accelerate using wide open throttle from 10 - 30 mph (16 - 48 km/h) in 3rd gear (CVT in D position) and decelerate with a fully closed throttle and come to a stop.
Is DTC P1586 indicated?
YES - Go to step 8.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the MPI module current sensor/battery current module sensor and the MCM.
8. Do the troubleshooting for P1580, then go to step 7.
9. Substitute a known-good DC-DC converter and recheck.
Is DTC P1586 indicated?
YES -
^ Update the MCM if it does not have the latest software, or substitute a known-good MCM, then recheck. If the symptom/ indication goes away with a known-good MCM, replace the original MCM.
^ Replace the MPI module current sensor.
^ Replace the battery module.
NO - Replace the DC-DC converter.