Complaint
This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206.
For 223 with fault code B1FCB97 follow LI54.10-P-073164.
Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of
these complaints may overlap. Rely on the faults listed in the Cause section for identifying the correct Remedy.
1. No start
2. Yellow or red instrument cluster message for 48 V on-board electrical system battery (G1/3)
3. Limp home mode, overheating, A/C not blowing cold, or loss of acceleration
4. Check Engine Light
Cause
Cause 1: Software causes Intermittent No Starts with fault B183387 in DC/DC converter N83/1
Cause 2: Software causes Permanent No Start with fault B183349. May also have fault B183371.
Cause 3: Hardware short circuit in 48V system causes fault B183319 in 48V battery. May also have fault B183371.
Cause 4: Internal 48V battery Peltier cooling element failure causes fault B183397
Cause 5: This will Always have fault code B183371 but different from cause 2 and 3 -- it will Not have B183349,
B183319, or any other faults in the 48V battery. This will only have fault B183371 in 48V battery. Cause 5 is from the
48V battery detecting an abnormality which then causes the 48V battery to disconnect itself. The disconnected 48V
battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of acceleration
Cause 6: Check Engine Light with fault P0606F1 in the N127 PTCU
Remedy
Note: each of these remedies correspond to a specific cause. Make sure to match correct Cause with Remedy.
Remedy 1:
1. Update software in G1/3 (48V battery) using newest Xentry software and AddOns
2. Road test and release vehicle if no further symptoms
