P0410

DTC P0410 SECONDARY AIR INJECTION SYSTEM

1. OUTLINE OF DIAGNOSIS
Detect leakage or blocking of secondary air injection system.
When the secondary air injection system is operated (pump is ON, right and left combi valves are open),close right and left combi valves, and detect NG by the secondary air supply pipe pressure and flow amount of secondary air pipe.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Perform the diagnosis when the secondary air pump is operated.




4. DIAGNOSTIC METHOD
When the secondary air injection system is operated (pump is operated, right and left combi valves are open), close right and left combi valves respectively as following, and measure the secondary air supply pipe pressure and flow amount of secondary air pipe. Detect NG by 2 methods of pump supply pressure check and flow amount check.




Pump supply pressure check
Judge NG for the pump supply pressure when secondary air supply pipe pressure is lower than ambient pressure and judge OK when it is higher, when the secondary air pump is ON.







Flow amount check
When the secondary air injection system is operated (pump is operated, right and left combi valves are open), close right combi valve -> close left combi valve -> open right combi valve -> open left combi valve,measure each secondary air supply pipe pressure (PSL, P0, PSR) and calculate the flow amount of secondary air pipe by these measurements. Detect NG according to flow amount of secondary air pipe.

5. DTC CLEAR CONDITION
^ When the OK idling cycle was completed 40 times in a row
^ When "Clear Memory" was performed

6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
^ When the OK driving cycle was completed 3 times in a row
^ When "Clear Memory" was performed

7. FAIL SAFE
None

8. ECM OPERATION AT DTC SETTING
^ Memorize the freeze frame data. (For test mode $02)
^ Memorize the diagnostic value and trouble standard value. (For test mode $06)