P1694 – JEEP

Code : P1694
Make : JEEP
Description : P1694 JEEP No Messages Received From The Powertrain Control Module
Possible causes :
– CCD Bus (-) circuit open between Powertrain Control Module (PCM) and Transmission Control Module (TCM)
– CCD Bus (+) circuit open between PCM and TCM
– Transmission CCD bus wiring damaged
– Faulty TCM
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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