P1649 + ABS problems - Resolved
#1
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Ok, I purchased an XK8 with an overheated engine (dropped valve seats) and slipping trans. I rebuilt an AJ26 with AJ27 longblock parts and replaced the transmission and am now working out the codes....
I have a constant ABS/Trac light and a P1649. Could they be related?
Looking for any ideas here, as I have not run across P1649 before....
I have a constant ABS/Trac light and a P1649. Could they be related?
Looking for any ideas here, as I have not run across P1649 before....
Last edited by steveinfrance; 03-13-2013 at 10:43 AM.
#2
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#3
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Head to the Electrical Guide in JTIS.
In Section 19 - Ancillaries under Network Serial data Links, look for the SCP (Standard Corporate Protocol) Network schematic detailing the ECM (Engine Control Module) to DLC (Diagnostic Link Connector) circuit.
There looks to be four possible culprits, two of which are common with the Adaptive Damping Control Module.
Graham
In Section 19 - Ancillaries under Network Serial data Links, look for the SCP (Standard Corporate Protocol) Network schematic detailing the ECM (Engine Control Module) to DLC (Diagnostic Link Connector) circuit.
There looks to be four possible culprits, two of which are common with the Adaptive Damping Control Module.
Graham
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#8
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Since you say that you get an immediate reaction to plugging in the reader "while running" it boils down to trying plugging it in while ignition is off, or trying another reader. One or the other is related. You are "supposed" to plug in while engine is off, then start.
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MasterJagTech (07-12-2021)
#10
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I wanted to circle back around on this- RESOLVED
Repaired the ABS solder points, put in a new(er) battery and am ONLY plugging in and using the code reader when the car is not running and key in the on position.
I still do not understand why the code reader being plugged in while running would trigger a code when my XJR does not have the same issue...
Repaired the ABS solder points, put in a new(er) battery and am ONLY plugging in and using the code reader when the car is not running and key in the on position.
I still do not understand why the code reader being plugged in while running would trigger a code when my XJR does not have the same issue...
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