DTC    P1613    Secondary Air Injection Driver Malfunction

for Preparation Click here


DESCRIPTION

Refer to DTC P0412 (Click here).

DTC No.
DTC Detection Conditions
Trouble Areas
P1613
Either (a) or (b) is met
(a) All conditions below are met (1 trip detection logic):
  1. While either air pump or air switching valve does not operate
  2. Diagnostic signal from Air Injection Control Driver (AID) is 80%
  3. Battery voltage is 8 V or more
(b) All conditions below are met (1 trip detection logic):
  1. Battery voltage is 8 V or more
  2. Diagnostic signal from AID is abnormal (duty signal excluding 0, 20, 40, 80 and 100%)
  1. AID
  2. Open in AID ground circuit
P1613
All conditions below are met (1 trip detection logic):
(a) Air injection system is operating
(b) Diagnostic signal from AID is 0%
(c) Battery voltage is 8 V or more
  1. Short in diagnostic information signal circuit (AID - ECM)
  2. Open or short in air pump and air switching valve command signal circuit (AID - ECM)
  3. Open in AID ground circuit
  4. AID
  5. ECM
P1613
All conditions below are met (1 trip detection logic):
(a) Battery voltage is 8 V or more
(b) Diagnostic signal from AID is 100%
  1. Open or short in AID power source circuit
  2. Open in diagnostic information signal circuit (AID - ECM)
  3. AID
  4. ECM

MONITOR DESCRIPTION

When a cold engine is started, the ECM immediately transmits command signals to the AID to drive the air pump and ASV. AID detects an open or short in the air pump and ASV circuit according to the AID terminal voltage and sends a signal as the diagnostic information to the ECM.
If the Secondary Air Injection (AI) system circuit or the AID itself has a malfunction, the AID sends a malfunction signal (duty signal) as a diagnostic signal to the ECM (when the system is normal, a system normal signal is sent). The ECM sets the DTC based on the diagnostic information from the AID.
Example:
  1. The duty ratio of the diagnostic signal from AID is 0 or 100% (remains at 0 V or battery voltage).
  2. The duty ratio of the diagnostic signal from AID is not 0, 20, 40, 80, or 100%.
  3. The AID outputs the normal signal (normal duty signal: 80%) while the system not operating.

WIRING DIAGRAM

Refer to DTC P0412 (Click here).

INSPECTION PROCEDURE

HINT:
The diagnostic information output from the AID can be confirmed by connecting an oscilloscope to the diagnostic information terminal of the AID.


  1. A066060E44
  2. Connect the intelligent tester to the DLC3.
  3. Connect an oscilloscope probe to the AIDI terminal of the ECM.
  4. Start the engine and turn the tester ON.
  5. On the tester, select the following menu items: Powertrain / Engine and ECT / Data List.
  6. Monitor the output voltage of the AID (duty ratio signal).

Oscilloscope range:

Item
Content
Tester Connection
AIDI - E1
Tool Setting
5V / DIV., 20 to 40 msec. / DIV.
Condition
Idling


AID Diagnostic Signal Waveform
ECM Command
DTC
(ECM Output)
Suspected Trouble Area
100% Duty Ratio
See waveform 1
Any Air Injection (AI) System operation
P1613
  1. Open in diagnostic signal circuit
  2. Air Injection Control Driver (AID)
  3. Open in AID +B circuit (AID power source)
  4. Short between +B circuit and diagnostic signal circuit
0% Duty Ratio
See waveform 2
AI System: ON
(Air pump ON, ASV ON)
P1613
  1. Open or short in air pump or Air Switching Valve (ASV) command signal circuit (ECM - AID)
  2. Open in AID ground circuit
  3. Short between diagnostic signal circuit and body ground
  4. AID
  5. ECM
AI System: OFF
(Air pump OFF, ASV OFF)
-
  1. Normal
20% Duty Ratio
See waveform 3
Air Pump: ON
P0418
  1. Short between air pump drive circuit and body ground
  2. Harness & connector (AID - Pump)
  3. Air Pump
  4. AID
  5. ECM
Air Pump: OFF
P0418
  1. Open in air pump drive circuit (AID - Pump), or short between air pump drive circuit and +B
  2. Harness & connector (AID - Pump)
  3. Air Pump
  4. AID
  5. ECM
40% Duty Ratio
See waveform 4
ASV: ON
P0412
  1. Short between ASV drive circuit and body ground
  2. Harness & connector (AID - ASV)
  3. ASV
  4. AID
  5. ECM
ASV: OFF
P0412
  1. Open in ASV drive circuit (AID - ASV), or short between ASV drive circuit and +B
  2. Harness & connector (AID - ASV)
  3. AID
  4. ASV
  5. ECM
80% Duty Ratio
See waveform 5
AI System: OFF
(Air pump OFF, ASV OFF)
P1613
  1. AID
  2. ECM
AI System: ON
(Air pump ON, ASV ON)
-
  1. Normal
Excluding Above
(excluding 0, 20, 40, 80, 100% duty)
-
P1613
  1. AID
  2. Open in AID ground circuit

Waveform 1
A112066E01
  1. 100% Duty Ratio

Waveform 2
A112067E01
  1. 0% Duty Ratio

Waveform 3
A112068E01
  1. 20% Duty Ratio

Waveform 4
A112069E01
  1. 40% Duty Ratio

Waveform 5
A112070E01
  1. 80% Duty Ratio

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1.CHECK OTHER DTC OUTPUT (IN ADDITION TO AIR INJECTION SYSTEM DTCS)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and turn the tester ON.

  1. Select the following menu items: Powertrain / Engine and ECT / DTC.

  1. Read DTCs.

    Result:
    Display (DTC output)
    		Proceed to
    P1613
    		A
    P1613 and other DTCs.
    		B

    HINT:
    If any DTCs other than P1613 are output, troubleshoot those DTCs first.



B
GO TO RELEVANT DTC CHART
OK


2.CHECK AIR INJECTION CONTROL DRIVER (POWER SOURCE)
B053781E16

  1. Disconnect the A20 AID connector.

  1. Turn the ignition switch ON.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    A20-5 (+B) - Body ground
    		9 to 14 V



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


3.CHECK WIRE HARNESS (AIR INJECTION CONTROL DERIVER - BODY GROUND)
B053781E17

  1. Disconnect the A20 AID connector.

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A20-1 (E) - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


4.CHECK WIRE HARNESS (AIR INJECTION CONTROL DRIVER - ECM)
G039240E02

  1. Disconnect the A20 AID connector.

  1. Disconnect the E11 and E12 ECM connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A20-2 (DI) - E11-20 (AIDI)
    		Below 1 Ω
    A20-4 (SIP) - E12-11 (AIRP)
    		Below 1 Ω
    A20-3 (SIV) - E12-24 (AIRV)
    		Below 1 Ω
    A20-2 (DI) or E11-20 (AIDI) - A20-5 (+B)
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


5.CHECK AIR INJECTION CONTROL DRIVER
B053781E18

  1. Disconnect the A20 AID connector.

  1. Turn the ignition switch ON.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    A20-2 (DI) - A20-1 (E)
    		9 to 14 V



NG
REPLACE ECM
OK

REPLACE AIR INJECTION CONTROL DRIVER