DTC U3003:16 [SELECTOR LEVER]

id0502z3587900

Outline

System malfunction location	Power supply (low input)
Detection condition	•  The selector lever detects that the selector lever power supply circuit voltage is less than 7.0 V for 5 s or more.
Fail-safe	Refer to the DTC table and fail-safe table according to the DTC. (See DTC TABLE [SELECTOR LEVER].)
Vehicle status when DTCs are output	Not applicable
Possible cause	•  DTCs are stored in the following modules. ―  PCM ―  DC-DC converter •  Lead-acid battery malfunction •  IG1 relay No.2 malfunction •  Short to ground or open circuit in IG1 relay No.2 power supply circuit •  Selector lever connector or terminal malfunction •  Short to ground or open circuit in selector lever power supply circuit •  Selector lever malfunction

Diagnostic Procedure

Step	Inspection	Results	Action
1	VERIFY DTCs •  Perform the DTC inspection for the following modules. (See DTC INSPECTION.) ―  PCM ―  DC-DC converter •  Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (e-SKYACTIV)].) (See DTC TABLE [DC-DC CONVERTER (e-SKYACTIV)].)
		No	Go to the next step.
2	INSPECT LEAD-ACID BATTERY FOR MALFUNCTION •  Inspect the applicable part. (See LEAD-ACID BATTERY INSPECTION.) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See LEAD-ACID BATTERY RECHARGING.) (See LEAD-ACID BATTERY REMOVAL/INSTALLATION.)
3	INSPECT IG1 RELAY No.2 FOR MALFUNCTION •  Inspect the applicable part. (See RELAY INSPECTION.) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	INSPECT IG1 RELAY No.2 POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT •  Inspect the applicable circuit for a short to ground and open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT SELECTOR LEVER CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT SELECTOR LEVER POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT •  Connect the IG1 relay. •  Inspect the power supply circuit for a short to ground and open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Clear the DTC recorded in the memory. (See CLEARING DTC.) •  Perform the DTC inspection for the selector lever. (See DTC INSPECTION.) •  Is the same Pending DTC present?	Yes	Refer to the CAN (controller area network) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) If the CAN communication is normal, perform the diagnosis from Step 1. •  If the malfunction is not resolved, replace the selector lever, then go to the next step. (See SELECTOR LEVER REMOVAL/INSTALLATION [A71M].)
		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs ARE DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.