![\"Error](\"http:\/\/evblog.wanjon.nl\/wp-content\/uploads\/2016\/04\/IMG_20160421_172343-1024x768.jpg\")
<\/p>\nAfter a few weeks driving in rainy conditions the car didn’t start charging when pluged in. First it whould start charging after a few un-pulg and plug cylcles. But last week it wouldn’t charge at all.<\/p>\n
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Using the PEU Utility to read the error from the PEU.<\/p>\n
![\"error5-peu-util\"](\"http:\/\/evblog.wanjon.nl\/wp-content\/uploads\/2016\/12\/error5-PEU-Util.jpg\")
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PEU Stat shows IS2, IS2 Means that there is an isolation problem with the battery, e..g if the battery isn’t floating.<\/p>\n
This can be tested with te following\u00a0procedure<\/p>\n
1. Connect 100 K-ohm resistor from battery (+) terminal to chassis
\nand measure voltage across resistor. Caution: resistor may get hot.<\/p>\n
2. Reconnect 100 K-ohm resistor from battery (-) terminal to chassis and measure voltage across resistor. Caution: resistor may get hot.<\/p>\n
If the propulsion battery is truly floating with respect to chassis, the voltage across the resistor should be near zero in each of the two above tests.<\/p>\n
The first test was good but the second failed, there was a negative voltage of 94 Volt between the Minus Terminal of the battery and the chassis.<\/p>\n
I disconnected all battery packs and\u00a0measured\u00a0them one by one. On the last one, the one with the negitave terminal connected to the PEU,\u00a0I measured\u00a0again 94\u00a0Volt.<\/p>\n
It turned out to be corrosion in the main connector of the PEU.<\/p>\n
![\"peu-connector-j3-hv-cables\"](\"http:\/\/evblog.wanjon.nl\/wp-content\/uploads\/2016\/12\/PEU-connector-J3-HV-Cables-576x1024.jpg\")
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After a few weeks driving in rainy conditions the car didn’t start charging when pluged in. First it whould start charging after a few un-pulg and plug cylcles. But last week it wouldn’t charge at all. Using the PEU Utility … Continue reading