DTC P058A:00 [PCM (SKYACTIV-D 2.2)]

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Note

•  To determine the malfunctioning part, proceed with the diagnostics from [Function inspection using M-MDS].

Details on DTCs

System malfunction location	Current sensor: Function malfunction
Detection condition	Determination condition	•  Error signal from the current sensor is received.
	Preconditions	•  Not applicable
	Determination period	•  5 s
	Drive cycle	•  2
	Self-test type	•  CMDTC self test
	Sensor/unit used	•  Current sensor
Fail-safe	•  Not applicable
Vehicle status when DTCs are output	•  i-stop warning light (amber) flashes •  Master warning display •  Displays a message related to a charge system malfunction in the display. •  Charging system warning indication •  The engine cannot be started or the engine may stall due to battery voltage decrease.
Possible cause	•  Connector or terminal malfunction of the following parts: ―  Current sensor ―  Front body control module (FBCM) ―  PCM •  Short to ground or open circuit in current sensor power supply circuit ―  Short to ground in wiring harness between positive battery terminal and current sensor terminal A ―  MAIN 200 A fuse malfunction ―  ENG.+B 7.5 A fuse malfunction ―  Open circuit in wiring harness between positive battery terminal and current sensor terminal A •  Short to ground in wiring harness between the following terminals: ―  Current sensor terminal B and front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2P and PCM terminal 2AK ―  Front body control module (FBCM) terminal 2N and PCM terminal 2AL •  Short to power supply in wiring harness between the following terminals: ―  Positive battery terminal and current sensor terminal A ―  Current sensor terminal B and front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2P and PCM terminal 2AK ―  Front body control module (FBCM) terminal 2N and PCM terminal 2AL •  Open circuit in wiring harness between the following terminals: ―  Current sensor terminal B and front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2P and PCM terminal 2AK ―  Front body control module (FBCM) terminal 2N and PCM terminal 2AL •  Current sensor malfunction •  Front body control module (FBCM) malfunction •  PCM malfunction

System Wiring Diagram

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Function Explanation (DTC Detection Outline)

Repeatability Verification Procedure

PID Item/Simulation Item Used in Diagnosis

Function Inspection Using M-MDS

Step	Inspection	Results	Action
1	PURPOSE: VERIFY IF CURRENT SENSOR MALFUNCTION IS FALSELY RECOGNIZED DUE TO OCCURRENCE OF CAN OR LIN COMMUNICATION DTC •  Switch the ignition OFF, and then switch it ON (engine off). •  Perform the DTC inspection for the PCM and front body control module (FBCM) using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)] •  Are DTCs related to CAN or LIN communication stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)]) (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)] Go to the next step.
		No	Go to the next step.
2	PURPOSE: VERIFY IF CURRENT SENSOR MALFUNCTION IS FALSELY RECOGNIZED DUE TO OCCURRENCE OF FRONT BODY CONTROL MODULE (FBCM) DTC •  Display the DTC for the front body control module (FBCM) using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)] •  Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)] Go to the troubleshooting procedure to perform the procedure from Step 1.
		No	Go to the troubleshooting procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

―  Perform inspection of each signal transmission system.

―  Perform a unit inspection of the current sensor.

―  Verify that the primary malfunction is resolved and there are no other malfunctions.

Step	Inspection	Results	Action
1	PURPOSE: VERIFY IF CONNECTOR DAMAGE OF EACH PART AFFECTS DIAGNOSTIC RESULTS Note •  Always disconnect the current sensor connector before disconnecting the negative battery terminal. •  Switch the ignition OFF. •  Disconnect the connectors of the following parts: ―  Current sensor ―  Front body control module (FBCM) ―  PCM •  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 8.
2	PURPOSE: VERIFY IF SHORT TO GROUND OR OPEN CIRCUIT IN CURRENT SENSOR POWER SUPPLY CIRCUIT AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor connector, front body control module (FBCM) connector, and PCM connector are disconnected. •  Measure the voltage at current sensor terminal A (vehicle wiring harness side). •  Is the voltage 0 V?	Yes	Inspect the MAIN 200 A fuse and the ENG+ 7.5 A fuse. •  If the fuse is blown: ―  Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and current sensor terminal A. 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. •  Replace the blown fuse. •  If the fuse is damaged: ―  Replace the damaged fuse. •  If both fuses are normal: ―  Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and current sensor terminal A. If there is a common connector: •  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. •  Repair or replace the malfunctioning location. If there is no common connector: •  Repair or replace the wiring harness which has an open circuit. Go to Step 8.
		No	Go to the next step.
3	PURPOSE: VERIFY IF SHORT TO GROUND IN EACH WIRING HARNESS AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor connector, front body control module (FBCM) connector, and PCM connector are disconnected. •  Inspect for continuity between the following terminals (vehicle wiring harness side) and ground. ―  Current sensor terminal B ―  Front body control module (FBCM) terminal 2P ―  Front body control module (FBCM) terminal 2N •  Is there continuity?	Yes	Refer to the wiring diagram and verify if there is a common connector between the following terminals. •  Current sensor terminal B and front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2P and PCM terminal 2AK •  Front body control module (FBCM) terminal 2N and PCM terminal 2AL 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 Step 8.
		No	Go to the next step.
4	PURPOSE: VERIFY IF SHORT TO POWER SUPPLY IN CURRENT SENSOR POWER SUPPLY CIRCUIT AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor connector, front body control module (FBCM) connector, and PCM connector are disconnected. •  Switch the ignition ON (engine off). Note •  Another DTC may be stored by the PCM detecting an open circuit. •  Measure the voltage at current sensor terminal A (vehicle wiring harness side). •  Is the voltage B+ or more?	Yes	Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and current sensor terminal A. 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 power supply 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 the power supply. Go to Step 8.
		No	Go to the next step.
5	PURPOSE: VERIFY IF SHORT TO POWER SUPPLY IN EACH WIRING HARNESS AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor connector, front body control module (FBCM) connector, and PCM connector are disconnected. •  Measure the voltage at the following terminals (vehicle wiring harness side). ―  Current sensor terminal B ―  Front body control module (FBCM) terminal 2P ―  Front body control module (FBCM) terminal 2N •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify if there is a common connector between the following terminals. •  Current sensor terminal B and front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2P and PCM terminal 2AK •  Front body control module (FBCM) terminal 2N and PCM terminal 2AL 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 power supply 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 the power supply. Go to Step 8.
6	PURPOSE: VERIFY IF OPEN CIRCUIT IN EACH WIRING HARNESS AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor connector, front body control module (FBCM) connector, and PCM connector are disconnected. •  Switch the ignition OFF. •  Inspect between the following terminals (vehicle wiring harness side) for continuity. ―  Current sensor terminal B and front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2P and PCM terminal 2AK ―  Front body control module (FBCM) terminal 2N and PCM terminal 2AL •  Is there continuity?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify if there is a common connector between the following terminals. •  Current sensor terminal B and front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2P and PCM terminal 2AK •  Front body control module (FBCM) terminal 2N and PCM terminal 2AL If there is a common connector: •  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location. •  Repair or replace the malfunctioning location. If there is no common connector: •  Repair or replace the wiring harness which has an open circuit. Go to Step 8.
7	PURPOSE: DETERMINE INTEGRITY OF CURRENT SENSOR •  Inspect the current sensor. (See CURRENT SENSOR INSPECTION [SKYACTIV-D 2.2] •  Is the current sensor normal?	Yes	Go to the next step.
		No	Replace the current sensor, then go to the next step. (See CURRENT SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2]
8	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION •  Reconnect all disconnected connectors and hoses. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)]) •  Implement the repeatability verification procedure. (See Repeatability Verification Procedure) •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) •  Is DTC P058A:00 displayed?	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.
9	PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION •  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.