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DTC P16AB:00 [PCM (SKYACTIV-D)]

id0102t5219700

Note

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

Details On DTCs

Description

Malfunction in PCM

Detection condition

Determination condition

•  Sub-processor in PCM has a malfunction.

Preconditions

•  Not applicable

Drive cycle

•  2

Self-test type

•  CMDTC self test

Sensor/unit used

•  PCM

Fail-safe

•  PCM restricts engine torque.

•  Limits the maximum engine speed.

•  Inhibits the EGR control.

•  PCM restricts engine-transaxle integration control. (ATX)

Vehicle status when dtcs are output

•  Check engine light turns on

Possible cause

•  PCM malfunction

Description	Malfunction in PCM
Detection condition	Determination condition	• Sub-processor in PCM has a malfunction.
Preconditions	• Not applicable
Drive cycle	• 2
Self-test type	• CMDTC self test
Sensor/unit used	• PCM
Fail-safe	• PCM restricts engine torque. • Limits the maximum engine speed. • Inhibits the EGR control. • PCM restricts engine-transaxle integration control. (ATX)
Vehicle status when dtcs are output	• Check engine light turns on
Possible cause	• PCM malfunction

System Wiring Diagram

• Not applicable

Function Explanation (DTC Detection Outline)

• If there is a malfunction with the sub-processor in the PCM, the PCM stores DTCs.

Repeatability Verification Procedure

• Switch the ignition ON (engine off) or idle, and wait for 10 s or more.

PID Item/Simulation Item Used in Diagnosis

• Not applicable

Function Inspection Using M-MDS

Step

Inspection

Results

Action

1

PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY

•  Verify related Service Bulletins, on-line repair information, or Service Information availability.

•  Is any related Information available?

Yes

Perform repair or diagnosis according to the available information.

•  If the vehicle is not repaired, go to the next step.

No

Go to the next step.

2

PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

•  Record the freeze frame data/snapshot data.

Note

•  Recording can be facilitated using the screen capture function of the PC.

—

Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.

Step	Inspection	Results	Action
1	PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY • Verify related Service Bulletins, on-line repair information, or Service Information availability. • Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
2	PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION • Record the freeze frame data/snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.

Troubleshooting Diagnostic Procedure

Intention of troubleshooting procedure

• Step 1

― Verify if malfunctioning part is PCM.

• Repair completion verification

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

Step

Inspection

Results

Action

1

PURPOSE: PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS PCM

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.

―  Implement the repeatability verification procedure.
(See Repeatability Verification Procedure)

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

Repair completion verification

PURPOSE: VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	PURPOSE: PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS PCM • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ― Implement the repeatability verification procedure. (See Repeatability Verification Procedure) • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
1		No	Go to the next step.
Repair completion verification	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification		No	DTC troubleshooting completed.