Jetta Wagon L4-1.9L DSL Turbo (ALH) (2003)
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Measure sensor resistance at connector terminal 4+7.
Specification see diagram
Scale A shows resistance values for temperature range 0 to 50 degree C and scale B the values for temperature range 50 to 100 degree C.
Examples:
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30 degree C corresponds to a resistance from 1500 to 2000 Ohm
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80 degree C corresponds to a resistance from 275 to 375 Ohm
If the specification is not obtained:
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Replace injection pump.
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Check DTC memory and, if necessary, repair any malfunctions and then erase. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes/With Manufacturer's Scan Tool
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Read readiness code. If the DTC memory has been erased or the Diesel Direct Fuel Injection Engine Control Module - J248- was disconnected
from permanent battery positive (B+), the readiness code must be generated again.
See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If the specification is obtained:
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Remove wiper arms and plenum cover.
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Connect test box VAG 1598/31 to control module wiring harness.