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Home >> Toyota >> 2017 >> Mirai >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (1 Of 6) >> Hybrid Control System >> DTC P0A1D-144: EV Control Module; DTC P0A1D-162: EV Control Module; DTC P0A1D-187: EV Control Module; DTC P0A1D-721: EV Control Module; DTC P0A1D-722: EV Control Module; DTC P0A1D-723: EV Control Module; DTC P0A1D-787: EV Control Module; DTC P0A1D-818: EV Control Module; DTC P0A1D-821: EV Control Module; DTC P0A1D-822: EV Control Module; DTC P0A1D-823: EV Control Module [06/2015 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:

When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).

HINT: 

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.

  1. Turn the power switch on (IG) and wait for 30 seconds or more.
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