Exhaust Gas Temperature (EGT) Sensor 1 -G235-, checking: Notes

Special Tools and Equipment 

• V.A.G 1526A
• V.A.G 1527B
• V.A.G 1594A
• V.A.G 1598/31

• VAS5051 with VAS5051/1

Test requirements: 

• VAS5051 tester connected and vehicle On Board Diagnostic (OBD) -01 Engine electronics- selected.
• Read DTC memory

Test sequence 

• Read measuring value block display group 112, engine at idle.
• Select diagnostic function "08 - read measured value block" in selection -1-.

Display on VAS5051:

• Check indication in display field -1-.
• Increase engine RPMs.

• Exhaust temperature must rise

If exhaust temperature remains constant or indicates an implausible value:

• Check voltage supply. Refer to Checking voltage supply .
• Check wire connections. Refer to Checking wire connections .