Passat V6-2.8L (ATQ) (2004)
Transmission Temperature Sensor/Switch: Testing and Inspection
Transmission Fluid Temperature Sensor, Checking
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 connector test kit
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Wiring diagram
Test requirements
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Respective fuses must be OK:
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Battery voltage must be at least 11.5 volts.
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Selector lever must be in -P- position.
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Ground (GND) connections to transmission must be OK.
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All electrical consumers such as, for example, lights and rear window defroster must be switched off.
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Parking brake must be engaged or else daylight driving lights will be switched on.
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Ignition switched off.
Test sequence
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Disconnect 16-pin harness connector -2-.
Observe safety precautions.
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Check harness connector for contact corrosion and ingress of water.
If harness connector is not OK:
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Repair the malfunction.
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Erase DTC memory of Transmission Control Module (TCM). Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic
Mode 4: Reset/Erase Diagnostic Data
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes
If harness connector is OK:
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Check resistance of Transmission Fluid Temperature Sensor -G93-.
Checking sensor resistance
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Check resistance of Transmission Fluid Temperature Sensor-G93- between terminals 13 + 14 at 16-pin connector to transmission:
ATF temperature
Specified value kohms
approx. 20 degrees C
0.8
approx. 60 degrees C
1.3
approx.120 degrees C
1.9
If one of the specified values is not obtained:
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Replace Transmission Fluid Temperature Sensor -G93-
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Erase DTC memory of Transmission Control Module (TCM). Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic
Mode 4: Reset/Erase Diagnostic Data
-
Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes
If specified values are obtained: