Volkswagen CJDA Workshop Manual page 417

Note
◆ The engine speed sender can be diagnosed via the engine
control unit.
◆ During diagnosis, the engine must run at idling speed. Only
"Ignition ON" causes the fault "Hall sender defective" to be
displayed automatically.
Special tools and workshop equipment required
◆ Auxiliary measuring set -V.A.G 1594D-
◆ Test box -V.A.G 1598/42- with adapter cable
-V.A.G 1598/39-1-
◆ Test instrument adapter/DSO (3 pin) -VAS 5257-
◆ DSO (digital storage oscilloscope) - -
◆ Current flow diagram
Test prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
● All electrical consumers must be switched off.
● Earth connections OK
Test procedure
Note
Only gold-plated contacts may be used when repairing the con-
tacts in the connectors of the engine speed sender.
– Clamp off coolant hoses at oil cooler using hose clamp and
pull off hoses.
– Remove oil filter bracket
oil filter bracket and engine oil cooler.
– Pull 3-pin connector off engine speed sender -G28-.
– Disconnect 3-pin connector -1- from Hall sender -G40-.
– Connect vehicle diagnostic tester, and select engine control
⇒ P age 23
unit.
– Select diagnosis function xxx"xxx- Read ?????". Engine
must be idling.
– If a fault with fault code 00513 has been detected, check en-
gine speed sender.
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
⇒ P age
260, Assembly overview -
Industriemotoren - Industrial Engines 2009 ▶
2 Checking components and functions
3
401