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09/01/2019

 Jeep Brent Blunier (160Pts.)

1

'07 Jeep GC, MUX voltage, key on- no crank, verifying wiring connections

2007 Jeep Grand Cherokee Diesel Automatic, EVO-CHRT5 T harness, standalone F diagram. 74.07 firmware, 6.0 hardware, Bypass checked "on"  are A1,3,7 C1, D1, D2, all other options are checked "off". OEM key programming was successful. When I push lock 3X the ingition comes on but engnine does not crank. I checked ignition connection after lock 3x, the power consant (white /blue) =12v and starter cranking (white/red) = 11.9v. The MUX voltage (VOM on green /red and chassis ground)  with no key =4.19v, key in=3.61v, key on=.993v, crank =.36v.... when remote starting "key on" =1.05v, "key off"=4.19v, cranking = .40V. .. I also have error codes/warnings ( trans temp, 4WD system fault) that appear on dash when it tries to remote start.  I have attached pic of wiring to the ingnition connection. I'm questioning MUX voltage and correct wiring? attached pics. the wires are soldered to pins in connector

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09/01/2019

 Jeep Brent Blunier (160Pts.)

1

'07 Jeep GC, MUX voltage, key on- no crank, verifying wiring connections

2007 Jeep Grand Cherokee Diesel Automatic, EVO-CHRT5 T harness, standalone F diagram. 74.07 firmware, 6.0 hardware, Bypass checked "on"  are A1,3,7 C1, D1, D2, all other options are checked "off". OEM key programming was successful. When I push lock 3X the ingition comes on but engnine does not crank. I checked ignition connection after lock 3x, the power consant (white /blue) =12v and starter cranking (white/red) = 11.9v. The MUX voltage (VOM on green /red and chassis ground)  with no key =4.19v, key in=3.61v, key on=.993v, crank =.36v.... when remote starting "key on" =1.05v, "key off"=4.19v, cranking = .40V. .. I also have error codes/warnings ( trans temp, 4WD system fault) that appear on dash when it tries to remote start.  I have attached pic of wiring to the ingnition connection. I'm questioning MUX voltage and correct wiring? attached pics. the wires are soldered to pins in connector

Login to reply View 2 answer(s)

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