DTC P1905:00 [PCM (SKYACTIV-D 2.2)]

id0102j5968400

DTC P1905:00	Check connector circuit low input
DETECTION CONDITION	•  A check connector voltage approx. 0 V condition continues for 16 msec. Diagnostic support note •  This is a continuous monitor (other). •  The check engine light does not illuminate. •  FREEZE FRAME DATA/Snapshot data is available. •  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	•  Not applicable
POSSIBLE CAUSE	Note •  If the fuel injection amount learning, compulsory diesel particulate filter regeneration, timing chain learning, or engine oil data reset is performed without using the M-MDS, DTC P1905:00 may be detected by grounding the check connector (test terminal) to the body. In this case, DTC P1905:00 is automatically erased by disconnecting the check connector ground. •  The purpose of DTC P1905:00 is to prevent forgetting to disconnect the check connector (test terminal) ground. •  [Vehicle system inspection] is displayed on the multi-information display. (With multi-information display) •  DTC P1905:00 is erased and [Vehicle system inspection] displayed on the multi-information display is also erased at the same time. (With multi-information display) •  Short to ground in wiring harness between check connector terminal E and PCM terminal 2E •  PCM connector or terminal malfunction •  PCM malfunction

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the freeze frame data/snap shot data.	—	Go to the next step.
2	INSPECT PCM CONNECTOR CONDITION •  Disconnect the PCM connector. •  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection. •  Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 4.
3	INSPECT CHECK CONNECTOR CIRCUIT FOR SHORT TO GROUND •  Switch the ignition OFF. •  Inspect for continuity between check connector terminal E (vehicle wiring harness side) and ground. •  Is there continuity?	Yes	•  Refer to the wiring diagram and verify if there is a common connector between check connector terminal E and PCM terminal 2E. If there is a common connector: ―  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to ground to determine the malfunctioning location. ―  Repair or replace the malfunctioning location. If there is no common connector: ―  Repair or replace the wiring harness which is shorted to ground. •  Go to the next step.
		No	Go to the next step.
4	VERIFY THAT REPAIRS HAVE BEEN COMPLETED •  Reconnect all the disconnected connectors. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Has DTC P1905:00 been recorded?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Go to the next step.
5	VERIFY OTHER DTCs •  Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
		No	DTC troubleshooting completed.