DTC P058A:00 [SKYACTIV-D 1.5]

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Note

•  To determine the malfunctioning part, proceed with the diagnostics from "Function Inspection Using M-MDS".

Details On DTCs

DESCRIPTION	Current sensor: Function malfunction
DETECTION CONDITION	Determination conditions	•  Error signal from the current sensor is received.
	Preconditions	•  Not applicable
	Malfunction determination period	•  5 s period
	Drive cycle	•  1
	Self test type	•  CMDTC self test
	Sensor used	•  Current sensor
FAIL-SAFE FUNCTION	•  Inhibits engine-stop by operating the i-stop function.
VEHICLE STATUS WHEN DTCs ARE OUTPUT	•  Flashes i-stop warning light (amber). •  A warning message is displayed on the display. (With center display) •  A warning message is displayed on the LCD in the instrument cluster. (Type B instrument cluster) •  Illuminates charging system warning light. •  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 MAIN 200 A fuse and current sensor terminal A ―  MAIN 200 A fuse and/or ENG+B 7.5 A fuse malfunction ―  Open circuit in wiring harness between battery positive terminal and current sensor terminal A •  Short to ground in wiring harness between the following terminals: ―  Current sensor terminal B—Front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2K—PCM terminal 2C ―  Front body control module (FBCM) terminal 2I—PCM terminal 2D •  Short to power supply in wiring harness between the following terminals: ―  Battery positive terminal—Current sensor terminal A ―  Current sensor terminal B—Front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2K—PCM terminal 2C ―  Front body control module (FBCM) terminal 2I—PCM terminal 2D •  Open circuit in wiring harness between the following terminals: ―  Current sensor terminal B—Front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2K—PCM terminal 2C ―  Front body control module (FBCM) terminal 2I—PCM terminal 2D •  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: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the snapshot data on the repair order.	—	Go to the next step.
2	PURPOSE: VERIFY RELATED SERVICE INFORMATION AVAILABILITY •  Verify related Service Information availability. •  Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. •  If the vehicle is not repaired, go to the next step.
		No	Go to the next step.
3	PURPOSE: VERIFY IF CURRENT SENSOR MALFUNCTION IS FALSELY RECOGNIZED BY DTC RELATED CAN OR LIN COMMUNICATION •  Switch the ignition off, then ON (engine off). •  Perform the PCM and front body control module (FBCM) DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) •  Are DTCs related CAN or LIN communication recorded?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-D 1.5].) (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].) Go to the next step.
		No	Go to the next step.
4	PURPOSE: VERIFY IF CURRENT SENSOR MALFUNCTION IS FALSELY RECOGNIZED BY DTC RELATED TO FRONT BODY CONTROL MODULE (FBCM) •  Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) •  Are any DTCs present?	Yes	Go to the applicable DTC inspection. (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 current sensor connector before disconnecting the negative battery cable. •  Switch the ignition off. •  Disconnect the connector of the following parts. ―  Current sensor ―  Front body control module (FBCM) ―  PCM •  Inspect for poor connection (such as damaged/pulled-out pins, corrosion). •  Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 8.
		No	Go to the next step.
2	PURPOSE: VERIFY IF OPEN CIRCUIT OR SHORT TO GROUND IN CURRENT SENSOR POWER SUPPLY CIRCUIT AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor, front body control module (FBCM) and PCM connectors are disconnected. •  Measure the voltage at the current sensor terminal A (wiring harness-side). •  Is the voltage 0 V?	Yes	Inspect the MAIN 200 A fuse and ENG+B 7.5 A fuse. •  If the fuse is blown: ―  Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and current sensor terminal A. If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to ground. •  Replace the malfunctioning fuse. •  If the fuse is damaged: ―  Replace the malfunctioning fuse. •  If all fuses are normal: ―  Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and current sensor terminal A. If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. •  Repair or replace the malfunctioning part. 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, front body control module (FBCM) and PCM connectors are disconnected. •  Inspect for continuity between the following terminals (wiring harness-side) and body ground: ―  Current sensor terminal B ―  Front body control module (FBCM) terminal 2K ―  Front body control module (FBCM) terminal 2I •  Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  Current sensor terminal B—Front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2K—PCM terminal 2C •  Front body control module (FBCM) terminal 2I—PCM terminal 2D If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short 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, front body control module (FBCM) and PCM connectors 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 the current sensor terminal A (wiring harness-side). •  Is the voltage above B+?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and current sensor terminal A. If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to 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, front body control module (FBCM) and PCM connectors are disconnected. •  Measure the voltage at the following terminals (wiring harness-side): ―  Current sensor terminal B ―  Front body control module (FBCM) terminal 2K ―  Front body control module (FBCM) terminal 2I •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  Current sensor terminal B—Front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2K—PCM terminal 2C •  Front body control module (FBCM) terminal 2I—PCM terminal 2D If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. •  Repair or replace the malfunctioning part. If there is no common connector: •  Repair or replace the wiring harness which has a short to power supply. Go to Step 8.
6	PURPOSE: VERIFY IF OPEN CIRCUIT IN EACH WIRING HARNESS AFFECTS DIAGNOSTIC RESULTS •  Verify that the current sensor, front body control module (FBCM) and PCM connectors are disconnected. •  Switch the ignition off. •  Inspect for continuity between the following terminals (wiring harness-side): ―  Current sensor terminal B—Front body control module (FBCM) terminal 2E ―  Front body control module (FBCM) terminal 2K—PCM terminal 2C ―  Front body control module (FBCM) terminal 2I—PCM terminal 2D •  Is there continuity?	Yes	Go to the next step.
		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: •  Current sensor terminal B—Front body control module (FBCM) terminal 2E •  Front body control module (FBCM) terminal 2K—PCM terminal 2C •  Front body control module (FBCM) terminal 2I—PCM terminal 2D If there is a common connector: •  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. •  Repair or replace the malfunctioning part. 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 1.5].) •  Is there any malfunction?	Yes	Replace the current sensor, then go to the next step. (See CURRENT SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
		No	Replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
8	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION •  Always reconnect all disconnected connectors. •  Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [SKYACTIV-D 1.5].) •  Implement the repeatability verification procedure. (See Repeatability Verification Procedure.) •  Perform the DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) •  Is the same DTC present?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) Go to the next step.
		No	Go to the next step.
9	PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION •  Is any other DTC or pending code stored?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-D 1.5].)
		No	DTC troubleshooting completed.