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I have 2011 Mitsubishi Outlander Sport, and the check engine

Customer Question
light is on, it comes...
I have 2011 Mitsubishi Outlander Sport, and the check engine light is on, it comes up with code P1740...
JA: Does the light stay on, or does it blink?
Customer: Stays on.
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I am most likely going to have to take it somewhere, I want to know more or less what I may be in for
JA: Anything else you think the mechanic should know?
Customer: The transmission service required has come up, but it went away.
Submitted: 1 year ago.Category: Mitsubishi
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Answered in 4 hours by:
8/12/2016
Mitsubishi Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mitsubishi
Satisfied Customers: 4,580
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles
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Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.

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Mitsubishi Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

2011 Mitsubishi Truck Outlander Sport 2WD L4-2.0L (4B11)

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DTC P1740: Malfunction of Lockup/Select Switching Solenoid Valve SOLENOID VALVE SYSTEM CIRCUIT Refer to See: A L L Diagnostic Trouble Codes ( DTC ) > P Code Charts > Continuously Variable Transmission/Transaxle, CVT. DIAGNOSTIC FUNCTION TCM detects abnormal operation of the lockup/select switching solenoid valve. DESCRIPTIONS OF MONITOR METHODS - Specified amount of current is not flown to the lockup/select switching solenoid valve because of an open or short circuit. MONITOR EXECUTION - Continuous MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR) Other Monitor (There is no temporary DTC stored in memory for the item monitored below) - P0741: Abnormality in lockup function - P0746: Abnormality in hydraulic control system function - P0841: Abnormality in line pressure sensor function Sensor (The sensor below is determined to be normal) - Not applicable LOGIC FLOW CHARTS (Monitor Sequence)

DTC SET CONDITIONS Judgment Criteria - Lockup/select switching solenoid valve activation command (ON voltage): 1.42 volts or less (0.2 second) - Lockup/select switching solenoid valve activation command (OFF voltage): more than 1.42 volts (0.2 second) OBD-II DRIVE CYCLE PATTERN Ignition switch : ON (start the engine and keep it for 10 seconds or more) PROBABLE CAUSES - Malfunction of valve body assembly (Faulty lockup/select switching solenoid valve) - Damaged wiring harness and connectors - Malfunction of TCM PROBABLE CAUSES - Malfunction of valve body assembly (Faulty lockup/select switching solenoid valve) - Damaged wiring harness and connectors - Malfunction of TCM DIAGNOSTIC PROCEDURE STEP 1. Scan tool data list Item 36: LU/SEL changeover SOL. output Item 37: LU/SEL changeover SOL. monitor OK: Check that the output and monitor do not differ greatly.

DTC SET CONDITIONS Judgment Criteria - Lockup/select switching solenoid valve activation command (ON voltage): 1.42 volts or less (0.2 second) - Lockup/select switching solenoid valve activation command (OFF voltage): more than 1.42 volts (0.2 second) OBD-II DRIVE CYCLE PATTERN Ignition switch : ON (start the engine and keep it for 10 seconds or more) PROBABLE CAUSES - Malfunction of valve body assembly (Faulty lockup/select switching solenoid valve) - Damaged wiring harness and connectors - Malfunction of TCM PROBABLE CAUSES - Malfunction of valve body assembly (Faulty lockup/select switching solenoid valve) - Damaged wiring harness and connectors - Malfunction of TCM DIAGNOSTIC PROCEDURE STEP 1. Scan tool data list Item 36: LU/SEL changeover SOL. output Item 37: LU/SEL changeover SOL. monitor OK: Check that the output and monitor do not differ greatly.

YES Go to Step 5. NO Replace the valve body assembly. STEP 5. Symptom recheck after erasing diagnostic trouble code Q. Is the check result normal? YES Intermittent malfunction NO Replace TCM.

That is how you can test it to see what failed

please let me know if that works for you

Chad Farhat

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