Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are handled incorrectly. Be sure to follow the correct work procedures when performing inspection and maintenance.
WARNING:
- Be sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts.
- The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake.
- Be sure to wear insulating protective equipment before beginning work on the high voltage system.
- Never allow workers other than the responsible person to touch the vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them.
- Refer to HIGH VOLTAGE PRECAUTIONS .
CAUTION:
Never bring the vehicle into the READY status with the service plug removed unless otherwise instructed in the Service Information. A malfunction may occur if this is not observed.
- PERFORM SELF-DIAGNOSIS
WITH CONSULT
- Perform "All DTC Reading" with CONSULT.
- Check if the "P3049 - P3060" is detected in "Self Diagnostic Result" of "HV BAT".
Is P3049 - P3060 detected?
YES
Perform diagnosis procedure of applicable DTC.
NO
GO TO STEP 2 .
- PRECONDITIONINGWARNING:
Follow the instructions below before starting the procedure.
- Disconnect high voltage circuit. Refer to HOW TO DISCONNECT HIGH VOLTAGE .
- Check voltage in high voltage circuit. Refer to CHECK VOLTAGE IN HIGH VOLTAGE CIRCUIT .
GO TO STEP 3 .
- CHECK CELL VOLTAGE DETECTION HARNESS
- Remove Li-ion battery. Refer to REMOVAL AND INSTALLATION .
- Refer to below table and check connection status of connectors and continuity between Li-ion battery controller and Module, according to detected DTC.
DTC Trouble diagnosis name Cell detection voltage harness Module Li-ion battery controller Continuity Connector Terminal Connector Terminal P3097 CELL CONTROLLER ASIC13 OPEN Cell 49 - 52 voltage detection harness LB17 8 LB4 76 Existed LB20 1 LB5 110 LB19 2 90 LB20 3 111 LB19 4 91 P3098 CELL CONTROLLER ASIC14 OPEN Cell 53 - 56 voltage detection harness LB19 4 LB5 91 Existed LB20 5 112 LB19 6 92 LB20 7 113 LB19 8 93 P3099 CELL CONTROLLER ASIC15 OPEN Cell 57 - 60 voltage detection harness LB19 8 LB5 93 Existed LB22 1 114 LB21 2 94 LB22 3 115 LB21 4 95 P309A CELL CONTROLLER ASIC16 OPEN Cell 61 - 64 voltage detection harness LB21 4 LB5 95 Existed LB22 5 116 LB21 6 96 LB22 7 117 LB21 8 97 P309B CELL CONTROLLER ASIC17 OPEN Cell 65 - 68 voltage detection harness LB21 8 LB5 97 Existed LB24 1 118 LB23 2 99 LB24 3 119 LB23 4 100 P309C CELL CONTROLLER ASIC18 OPEN Cell 69 - 72 voltage detection harness LB23 4 LB5 100 Existed LB24 5 120 LB23 6 101 LB24 7 121 LB23 8 102 P309D CELL CONTROLLER ASIC19 OPEN Cell 73 - 76 voltage detection harness LB23 8 LB5 102 Existed LB26 1 122 LB25 2 103 LB26 3 123 LB25 4 104 P309E CELL CONTROLLER ASIC20 OPEN Cell 77 - 80 voltage detection harness LB25 4 LB5 104 Existed LB26 5 124 LB25 6 105 LB26 7 125 LB25 8 106 P309F CELL CONTROLLER ASIC21 OPEN Cell 81 - 84 voltage detection harness LB25 8 LB5 106 Existed LB28 1 127 LB27 2 107 LB28 3 128 LB27 4 108 P30A0 CELL CONTROLLER ASIC22 OPEN Cell 85 - 88 voltage detection harness LB27 4 LB5 108 Existed LB28 5 LB6 137 LB27 6 130 LB28 7 138 LB27 8 131 P30A1 CELL CONTROLLER ASIC23 OPEN Cell 89 - 92 voltage detection harness LB27 8 LB6 131 Existed LB30 1 140 LB29 2 132 LB30 3 141 LB29 4 133 P30A2 CELL CONTROLLER ASIC24 OPEN Cell 93 - 96 voltage detection harness LB29 4 LB6 133 Existed LB30 5 142 LB29 6 134 LB30 7 143 LB29 8 135 Is the inspection result normal?
YES
Replace Li-ion battery controller. Refer to DISASSEMBLY AND ASSEMBLY .
NO
Replace cell voltage detection harness.