Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Diagnostic Trouble Code Tests and Associated Procedures

P0112-P1703:




P1703-P1746:




P0741-0756:




P1742-P1710:





Refer to the On-Board Diagnostic Trouble Code Description Chart for information on condition and symptoms. This chart will be helpful in referring to the proper procedures and to aid in diagnosing internal transmission concerns and external non-transmission inputs. The pinpoint tests are used in diagnosing electrical concerns of the transmission. Make sure that the vehicle wiring harness and the powertrain control module are diagnosed as well.

NOTE: The vehicle wiring harness, powertrain control module and non-transmission sensors may affect transmission operations. Service these concerns first.