Download D3E803D02EB-Generic_..

TT RS 2012 ➤
Generic Scan Tool - Edition 07.2011
Specified value: 1.5 Ω Max
If the specified value was Not obtained:
– Check the wiring for an open circuit or high resistance.
– Check the electrical harness connector for damage, corrosion,
loose or broken terminals.
– If necessary, repair the faulty wiring connection.
If no malfunction is detected in the ground circuit:
– Replace the Engine Control Module (ECM) -J623- . Refer to
the Repair Manual.
Testing if display approx. 140.0° C
– Disconnect the Engine Coolant Temperature (ECT) Sensor G62 or G83- electrical harness connector .
– Turn the ignition switch ON.
If indication jumps to approx. -40.0° C:
– Switch ignition OFF.
– Replace the Engine Coolant Temperature (ECT) Sensor -G62
or G83- .
If indication remains at approx. 140.0° C:
Checking wiring
– Remove the Engine Control Module (ECM) -J623- . Refer to
the Repair Manual.
– Disconnect the ECT harness connector at the sensor.
– Using a multimeter, check the signal circuit of the Engine
Coolant Temperature (ECT) Sensor -G62 or G83- electrical
harness connector terminal 1 to engine ground. Refer to Wir‐
ing Diagrams for pin locations.
Specified value: OL or no continuity.
If the specified value was Not obtained:
– Check the wiring for a short circuit to Ground.
– Check the electrical harness connector for damage, corrosion,
loose or broken terminals.
– If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
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– Replace the Engine Control Module (ECM) -J623- . Refer to
the Repair Manual.
Final procedures
After the repair work, the following work steps must be performed
in the following sequence:
1-
Check the DTC memory. Refer to
⇒ “3.3.3 Diagnostic Mode 03 - Read DTC Memory”,
page 14 .
2-
If necessary, erase the DTC memory. Refer to
⇒ “3.3.4 Diagnostic Mode 04 - Erase DTC Memory”,
page 15 .
3-
If the DTC memory was erased, generate readiness code.
Refer to ⇒ “3.2 Readiness Code”, page 8 .
3. Diagnosis and Testing
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