dealer put in both ecu and ecm computers costing me $ 6,000.00 and its still shorting out gauges and miss firing. I just cant find the short circuit ? I need more Ideas where to search from people who have found a short w/this 07 volvo d12 465 hp day cab or 07 and later models THANKS IN ADVANCE
2007 volvo d12 series 465 hp cant find short circuit
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Gordon Light Foot, Sep 26, 2019.
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When is it shorting out.. while you drive or as soon as you connect battery cables? I'd start with the power harness to the ecm as it gives signals to gauges and injectors.
Check the whole harness especially on bends and wherever there is zip ties fastening the loom to something -
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Also I'm still not fully convinced that something is shorting out. Are you blowing fuses and replacing them? because if you aren't then there are other things to check like the key on signal. It goes to the fuse box through a 5 amp fuse and should be called ignition, key, ... something along those lines. If that signal is dropping out its the same as pulling key out.
Gordon Light Foot Thanks this.
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