2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 61
B2519
ACTIVE AFS
DTC B2519 LEVELIZER CALIB
B2521
ACTIVE AFS
DTC B2521 ECU CIRC
1.CHECK SENSOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and ground.
OK or NG
OK - GO TO 2.
NG - If voltage is less than approx. 4 V, GO TO 3.
- If voltage is more than approx. 6 V, GO TO 4.
