How to Repair Poor Operation of Speed Meter Gauge

How to repair poor operation of speed meter.

 

Model: Hyundai Grandeur (XG)

Year Model: 2004b

Fuel: Gasoline

Displacement: 3000cc

Subject: Poor operation of speed meter gauge.

1) Condition

1. Speed meter gauge does not operate(Not related to drive speed).

2) Cause

1. The connector pin is pushed during when connecting the VSS signal to install a navigation system.

3) Diagnosis

1. When performing driving test , speed signal is inputted in G-Scan:Normal
   = Vehicle speed sensor: Normal,ECU signal input line: Normal.
2. Actuate the speed meter by force using VSS mode in G-Scan simulator.
   = No change of speed gauge.
3. Inspect the VSS signal of connector after removing the instrument cluster in inspection #2 condition: No signal.
4. When checking the VSS(Vehicle Speed Sensor) signal input wiring a pushed connector wiring is found that connects with passenger compartment junction box.

4) Repair Parts or Replace.

1. Replace the connector pin

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