SFI SYSTEM, Diagnostic DTC:P1613

DTC Code	DTC Name
P1613	Secondary Air Injection System Driver

DESCRIPTION

Refer to DTC P0412 Click here.

DTC No.	DTC Detection Conditions	Trouble Areas
P1613	Either condition (1) or (2) met: (1) All conditions are met (1 trip detection logic): Either the air pump or the air switching valve is not operating. Diagnostic signal from the air injection control driver is 80%. Battery voltage is 8 V or higher. (2) Both conditions are met (1 trip detection logic): Battery voltage is 8 V or higher. Diagnostic signal from the air injection control driver is abnormal (duty signal other than 0, 20, 40, 80 or 100%).	Air injection control driver Open in air injection control driver ground circuit
P1613	All conditions are met (1 trip detection logic): Secondary air injection system operating (air switching valve and air pump are on). Diagnostic signal from the air injection control driver is 0%. Battery voltage is 8 V or higher.	Open in air pump or air switching valve command signal circuit (ECM - air injection control driver) Open in air injection control driver ground circuit Short between diagnostic signal circuit and body ground Air injection control driver ECM
P1613	Both conditions are met (1 trip detection logic): Battery voltage is 8 V or higher. Diagnostic signal from the air injection control driver is 100%.	Open in diagnostic signal circuit Air injection control driver Open in air injection control driver +B circuit (air injection control driver power source) Short between +B and diagnostic signal circuits Short in air pump or air switching valve command signal circuit (ECM - air injection control driver) Open in air Injection control driver ground circuit

DTC No.

DTC Detection Conditions

Trouble Areas

P1613

Either condition (1) or (2) met:

(1) All conditions are met (1 trip detection logic):

Either the air pump or the air switching valve is not operating.
Diagnostic signal from the air injection control driver is 80%.
Battery voltage is 8 V or higher.

(2) Both conditions are met (1 trip detection logic):

Battery voltage is 8 V or higher.
Diagnostic signal from the air injection control driver is abnormal (duty signal other than 0, 20, 40, 80 or 100%).

Air injection control driver
Open in air injection control driver ground circuit

P1613

All conditions are met (1 trip detection logic):

Secondary air injection system operating (air switching valve and air pump are on).
Diagnostic signal from the air injection control driver is 0%.
Battery voltage is 8 V or higher.

Open in air pump or air switching valve command signal circuit (ECM - air injection control driver)
Open in air injection control driver ground circuit
Short between diagnostic signal circuit and body ground
Air injection control driver
ECM

P1613

Both conditions are met (1 trip detection logic):

Battery voltage is 8 V or higher.
Diagnostic signal from the air injection control driver is 100%.

Open in diagnostic signal circuit
Air injection control driver
Open in air injection control driver +B circuit (air injection control driver power source)
Short between +B and diagnostic signal circuits
Short in air pump or air switching valve command signal circuit (ECM - air injection control driver)
Open in air Injection control driver ground circuit

MONITOR DESCRIPTION

For a short time after a cold engine start, the ECM transmits command signals to the air injection control driver to drive the air pump and air switching valve. The air injection control driver detects open and short circuits according to the voltages at the air injection control driver terminals connected to the air pump and air switching valve, and the circuit voltage of the air injection control driver power source, and transmits diagnostic information as a signal to the ECM.

If the Secondary Air Injection (AIR) system circuit or the air injection control driver itself malfunctions, the air injection control driver sends a malfunction signal (duty signal) as diagnostic information to the ECM (when the system is normal, a system normal signal is sent). The ECM stores the DTC based on the diagnostic information from the air injection control driver.

Example:

The duty ratio of the diagnostic signal from the air injection control driver is 0 or 100% (remains at 0 V or is the same as battery voltage).
The duty ratio of the diagnostic signal from the air injection control driver shows an impossible ratio (other than 0, 20, 40, 80 or 100%).
The air injection control driver outputs the normal signal (normal duty signal: 80%) while the system is not operating.

WIRING DIAGRAM

Refer to DTC P0412 Click here.

INSPECTION PROCEDURE

Tech Tips

Diagnostic information output by the air injection control driver can be confirmed by connecting an oscilloscope to the diagnostic information terminal of the air injection control driver. Reading the waveform while performing the AIR system forced operation provided in the system check allows the possible trouble areas to be narrowed down.

(a) Start the engine and warm it up.
(b) Turn the ignition switch off.
(c) Connect the intelligent tester to the DLC3.
Text in Illustration

*a
Component with harness connected

(ECM)

(d) Connect oscilloscope probes to the AIDI and E1 terminals of the ECM.
(e) Turn the ignition switch to ON and turn the intelligent tester on.
(f) Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: CLOSE.

Tech Tips

When Manual Mode is selected, the intelligent tester initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.
(g) Start the engine.
(h) Perform the AIR system forced operation while the engine is idling.

(i) Monitor the air injection control driver voltage output (duty ratio signal).

Measurement Condition
Item	Content
ECM Terminal Name	AIDI - E1
Tester Range	5 V/DIV., 20 ms/DIV.
Condition	Idling

(j) Turn the ignition switch off.
Note
- Secondary Air Injection Check only allows technicians to operate the AIR system for a maximum of 5 seconds. Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks. While AIR system operation using the intelligent tester is prohibited, the intelligent tester display indicates the prohibition (Wait or Error).
  
  If Error is displayed on the intelligent tester during the test, stop the engine for 10 minutes, and then try again.
- Performing Secondary Air Injection Check repeatedly may cause damage to the AIR system. If it is necessary to repeat the check, leave an interval of several minutes between System Check operations to prevent the system from overheating.
- When performing Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.
- Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

AID Diagnostic Signal Waveform	ECM Command	DTC (ECM Output)	Suspected Trouble Area
100% Duty Ratio	Any Secondary Air Injection (AIR) System Operation	P1613	Open in diagnostic signal circuit Air injection control driver Open in air injection control driver +B circuit (air injection control driver power source) Short between +B and diagnostic signal circuits Short in air pump or air switching valve command signal circuit (ECM - air Injection control driver) Open in air Injection control driver ground circuit
0% Duty Ratio	AIR System: ON (Air pump ON, Air switching valve ON)	P1613	Open or in air pump or air switching valve command signal circuit (ECM - air Injection control driver) Open in air injection control driver ground circuit Short between diagnostic signal circuit and body ground Air injection control driver ECM
0% Duty Ratio	AIR System: OFF (Air pump OFF, Air switching valve OFF)	-	Normal
20% Duty Ratio	Air Pump: ON	P0418	Short between air pump drive circuit and body ground Open or in air injection control driver BATT circuit (air Injection control driver power source) Harness and connector (air injection control driver - air pump assembly) Air pump assembly Air injection control driver ECM
20% Duty Ratio	Air Pump: OFF	P0418	Open in air pump drive circuit (air Injection control driver - air pump assembly) or short between air pump drive circuit and +B or BATT Open or in air injection control driver BATT circuit (air injection control driver power source) Harness and connector (air injection control driver - air pump assembly) Air pump assembly Air injection control driver ECM
40% Duty Ratio	Air switching valve: ON	P0412	Short between air switching valve assembly drive circuit and body ground Harness and connector (air injection control driver - air switching valve assembly) Air switching valve assembly Air injection control driver ECM
40% Duty Ratio	Air switching valve: OFF	P0412	Open in air switching valve assembly drive circuit (air injection control driver - air switching valve assembly) or short between air switching valve assembly drive circuit and +B or BATT Harness and connector (air injection control driver - air switching valve assembly) Air injection control driver Air switching valve assembly ECM
80% Duty Ratio	AIR System: OFF (Air pump OFF, Air switching valve OFF)	P1613	Air injection control driver ECM
80% Duty Ratio	AIR System: ON (Air pump ON, Air switching valve ON)	-	Normal
Other than above (other than 0, 20, 40, 80 or 100% duty)	-	P1613	Air injection control driver Open in air injection control driver ground circuit

Tech Tips

By using the intelligent tester to perform the Secondary Air Injection Check operation in the system check, the air-fuel ratio and the pressure in the secondary air injection system passage can be checked while the secondary air injection system is operating. This helps technicians to troubleshoot the system when it malfunctions.
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition 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.

PROCEDURE

CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1613)

Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the intelligent tester on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read DTCs.

Result
Result	Proceed to
P1613	A
P1613 and other DTCs	B

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

GO TO DTC CHART Click here

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (AIDI VOLTAGE)

Text in Illustration
*a	Component with harness connected (ECM)

Start the engine and warm it up.
Turn the ignition switch off.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the intelligent tester on.
Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: CLOSE.

Tech Tips

When Manual Mode is selected, the intelligent tester initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.
Start the engine.
Perform the AIR system forced operation while the engine is idling.
Measure the voltage between the AIDI and E1 terminals of the ECM connector when the AIR system is on and off.

Turn the ignition switch off.

Note

Do not perform the system check operation repetitively. It may cause the damage in the system. If it is necessary to repeat the check, leave an interval of several minutes between system check operations.
When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.
Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

Result
Results	Suspected Trouble Areas	Proceed To
Fixed at low voltage (1.6 V or less) even when AIR system ON (Air pump ON, ASV OPEN)	Short between air pump or air switching valve command signal circuit and body ground Open in air pump command signal circuit (between ECM and air injection control driver) Open in air switching valve assembly command signal circuit (between ECM and air injection control driver) Open in air injection control driver ground circuit (between air injection control driver and body ground) Diagnostic signal circuit ground short Air injection control driver ECM	A
Fixed at high voltage (12 V or higher) even when AIR system OFF (Air pump OFF, ASV CLOSE)	Open in diagnostic signal circuit (ECM - air injection control driver) Short between +B and diagnostic signal circuits (ECM - air injection control driver) Open in air injection control driver power source circuit Air injection control driver ECM	B
Other than above: Fluctuating (duty signal other than 20, 40 or 80%)	Air injection control driver Open in air injection control driver ground circuit (between air injection control driver and body ground)	C

CHECK AIR INJECTION CONTROL DRIVER POWER SOURCE CIRCUIT Click here

CHECK HARNESS AND CONNECTOR (AIR INJECTION CONTROL DRIVER - BODY GROUND) Click here

INSPECT ECM (AIRP AND AIRV VOLTAGE)

Text in Illustration
*a	Component with harness connected (ECM)

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
G59-19 (AIRP) - C64-5 (E1)	Ignition switch ON	11 to 14 V
G59-6 (AIRV) - C64-5 (E1)	Ignition switch ON	11 to 14 V

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER) Click here

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER)

Disconnect the ECM connector.
Disconnect the air injection control driver connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open)

Tester Connection	Condition	Specified Condition
A16-1 (E) - Body ground	Always	Below 1 Ω
A16-4 (SIP) - G59-19 (AIRP)	Always	Below 1 Ω
A16-3 (SIV) - G59-6 (AIRV)	Always	Below 1 Ω

Measure the voltage according to the value(s) in the table below.

Standard Voltage (Check for Short)

Tester Connection	Switch Condition	Specified Condition
A16-2 (DI) - A16-1 (E)	Ignition switch ON	11 to 14 V

Result
Result	Proceed to
NG	A
OK	B

Reconnect the ECM connector.
Reconnect the air injection control driver connector.

PERFORM ACTIVE TEST USING INTELLIGENT TESTER Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK AIR INJECTION CONTROL DRIVER POWER SOURCE CIRCUIT

Text in Illustration
*a	Front view of wire harness connector (to Air Injection Control Driver)

Disconnect the air injection control driver connector.
Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
A16-5 (+B) - Body ground	Ignition switch ON	11 to 14 V

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Short)

Tester Connection	Condition	Specified Condition
G59-19 (AIRP) or A16-4 (SIP) - Body ground	Always	10 kΩ or higher
G59-6 (AIRV) or A16-3 (SIV) - Body ground	Always	10 kΩ or higher

Reconnect the air injection control driver connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT AIR INJECTION CONTROL DRIVER (DI TERMINAL VOLTAGE)

Text in Illustration
*a	Front view of wire harness connector (to Air Injection Control Driver)

Disconnect the air injection control driver connector.
Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
A16-2 (DI) - A16-1 (E)	Ignition switch ON	11 to 14 V

Reconnect the air injection control driver connector.

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER) Click here

PERFORM ACTIVE TEST USING INTELLIGENT TESTER Click here

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER)

Disconnect the ECM connector.
Disconnect the air injection control driver connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open)

Tester Connection	Condition	Specified Condition
A16-2 (DI) - G60-30 (AIDI)	Always	Below 1 Ω

Standard Resistance (Check for Short)

Tester Connection	Condition	Specified Condition
A16-2 (DI) or G60-30 (AIDI) - Body ground	Always	10 kΩ or higher

Reconnect the ECM and air injection control driver connectors.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (AIR INJECTION CONTROL DRIVER - BODY GROUND)

Disconnect the air injection control driver connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open)

Tester Connection	Condition	Specified Condition
A16-1 (E) - Body ground	Always	Below 1 Ω

Reconnect the air injection control driver connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

Disconnect the air injection control driver connector.

Text in Illustration
*1	Air Injection Control Driver
*2	ECM
*a	Front view of wire harness connector (to Air Injection Control Driver)

Connect terminals DI and SIV of the wire harness connector for the air injection control driver.

Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the intelligent tester on.
Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

Tech Tips

When Manual Mode is selected, the intelligent tester initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.
Start the engine.
Perform the AIR system intrusive operation while the engine is idling.
Measure the voltage between the SIV and E terminals of the ECM connector when the AIR system is on and off.

Turn the ignition switch off.

Note

Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.
When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.
Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

Standard Voltage

Tester Connection	Condition	Specified Condition
A16-3 (SIV) - A16-1 (E)	AIR PUMP: ON, ASV: OPEN	0.5 to 2 V
A16-3 (SIV) - A16-1 (E)	AIR PUMP: OFF, ASV: CLOSE	11 to 14 V

Text in Illustration
*1	Air Injection Control Driver
*2	ECM
*a	Front view of wire harness connector (to Air Injection Control Driver)

Connect terminals DI and SIP of the wire harness connector for the air injection control driver.

Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the intelligent tester on.
Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

Tech Tips

When Manual Mode is selected, the intelligent tester initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.
Start the engine.
Perform the AIR system intrusive operation while the engine is idling.
Measure the voltage between the SIP and E terminals of the ECM connector when the AIR system is on and off.

Turn the ignition switch off.

Note

Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.
When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.
Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

Standard Voltage

Tester Connection	Condition	Specified Condition
A16-4 (SIP) - A16-1 (E)	AIR PUMP: ON, ASV: OPEN	0.5 to 2 V
A16-4 (SIP) - A16-1 (E)	AIR PUMP: OFF, ASV: CLOSE	11 to 14 V

Reconnect the air injection control driver connector.

REPLACE ECM Click here

REPLACE AIR INJECTION CONTROL DRIVER
1. Replace the air injection control driver Click here.
NEXT
CHECK WHETHER DTC OUTPUT RECURS (SYSTEM CHECK AUTOMATIC MODE)
1. Start the engine and warm it up.
2. Turn the ignition switch off.
3. Connect the intelligent tester to the DLC3.
4. Turn the ignition switch to ON and turn the intelligent tester on.
5. Clear DTCs (if stored) Click here.
6. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.
7. Start the engine after the intelligent tester initialization is finished.
8. Perform the system check operation by pressing Next.
9. After operating the AIR system, press the Exit button to confirm the AIR system pending codes.
10. Check Pending DTCs.
  
  OK
  
  No pending DTC output.
11. Turn the ignition switch off.
  Note
  - When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.
  - Turn the ignition switch off when the Secondary Air Injection Check operation finishes.
NG
REPLACE ECM Click here

OK

END