Passat Fuel Temperature Sensor - Component Diagrams (1997)
Scale B the values for temperature range 50 to 100°C.
Examples:
30°C corresponds to a resistance from 1500 to 2000 Ohms
80°C corresponds to a resistance from 275 to 375 Ohms
If the specification is not obtained:
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Replace injection pump
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Display the readiness code
If DTC memory was erased:
-
Create readiness code again
If specification obtained:
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Connect Test Box VAG 1598/18 to ECM harness connector
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Check wiring for open circuit between Test Box and connector -1- using wiring diagram:
terminal 7 + socket 63
terminal 4 + socket 33
Wire resistance: 1.5 Ohms maximum.
Also check wires for shorting to one another
Specification: Infinite Ohms.
If wiring OK:
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Replace Diesel direct injection system ECM J248
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Display the readiness code
If DTC memory was erased:
-
Create readiness code again