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P0688 Diagnostic Trouble Code Discussion for August 2014

ASD Relay Sense Circuit Low

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Trouble Ticket Help Requests for DTC P0688
Help Request Posted
2005 Jeep Wrangler SE 2.4L No Start VIN: 1J4FA29135
P0688: ASD Relay Sense Circuit Low. ... started 4 times and then a no start no crank. Performed diagnostic, codes p0499 and p0688. Perform circuit tests to find ecm not energizing asd relay or engaging starter relay in crank mode. NVLD tests in range and have unpl...
August 08, 2014