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DTC - Diagnostic Trouble Codes information

P0726

Powertrain Codes

P0726 - JEEP - Engine Speed Input Circuit Performance

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

Possible Causes

- Poor communication between the ECM and TCM - Faulty ECM - Faulty TCM - Failed CKP Sensor

When Detected

The P0726 Codes is triggered when the TCM detected that the calculated engine speed is greater than the RPM's received from ECM.

Description

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).