Test-ID 05: Tank ventilation system

Test requirements

There must not be any DTCs stored in DTC memory. Refer to Diagnostic mode 3: Check DTC Memory
Coolant temperature must be at least 80 ° C. Refer to Diagnostic mode 1: Check measured values

Work procedure

Read readiness code. Refer to Readiness code, reading
Let engine run at idle.
Under address word 33, select "Diagnostic mode 6: Check test results of components that are not continuously monitored".
Select the "Test-ID 05: Tank ventilation system".

Check specified values at idle.

Evaluation test-ID 05: Tank ventilation system

Tank ventilation system				Specified value:
Evaporative Emission (EVAP) canister purge regulator valve(s)				min.		max.
Passive test (can only check OK)
Engine code AFP				0.148		---
Engine code BDF				0.148		---
Engine code BJS				0.148		---
Active test: Deviation of oxygen sensor control in direction "lean" (can only check OK), short test
Engine code AFP				0.060		---
Engine code BDF				0.070		---
Engine code BJS				0.070		---

Tank ventilation system				Specified value:
Evaporative Emission (EVAP) canister purge regulator valve(s)				min.		max.
Active test: Deviation of oxygen sensor control in direction "rich" (can only check OK), short test
Engine code AFP				-0.060		---
Engine code BDF				-0.070		---
Engine code BJS				-0.070		---
Active test: Air balance at idle OK, also short test
Engine code AFP				25%		---
Engine code BDF				25%		---
Engine code BJS				35%		---
Active test: Air balance at idle not OK, also short test
Engine code AFP				25%		---
Engine code BDF				25%		---
Engine code BJS				35%		---

Tank ventilation system				Specified value:
Tank seal				min.		max.
Large/small leak
Engine code AFP				1.9		---
Engine code BDF				1.6 to 1.7		---
Engine code BJS				1.6 to 1.7		---
Reed contact does not close
Engine code AFP				---		0.5
Engine code BDF				---		0.5
Engine code BJS				---		0.5
Reed contact does not open
Engine code AFP				---		30.0
Engine code BDF				---		30.0
Engine code BJS				---		30.0

Tank ventilation system				Specified value:
Tank seal				min.		max.
Tank ventilation system not OK during initial flush
Engine code AFP				0.0		---
Engine code BDF				0.0		---
Engine code BJS				25.0		---
Pinhole leak
Engine code AFP				5.8		---
Engine code BDF				5.8		---
Engine code BJS				7.5		---

End diagnosis and switch ignition off.

If specified values are not obtained:

EVAP canister system, checking for proper seal. Refer to Evaporative Emission (EVAP) canister system, checking for proper seal .
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking .
Leak Detection Pump (LDP) -V144-, checking. Refer to Leak Detection Pump (LDP), checking .

Vehicles with engine code BJS

Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-. Refer to Evaporative Emission (EVAP) canister purge solenoid valve 2 (vehicles with engine code BJS), checking .

Continuation for all vehicles

Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data
Generate readiness code. Refer to Readiness code, generating