Was the Instrument Cluster System Check performed?

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Go to Step 2

Go to Instrument Cluster System Check

Inspect that the Vehicle Control Module (VCM) (Gas) or the Vehicle Speed Sensor Buffer (VSSB) (Diesel) is correctly calibrated for the correct axle ratio and the correct tire size.

Is the problem resolved?

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Go to Instrument Cluster System Check

Go to Step 3

1. Connect a scan tool in order to monitor vehicle speed.
2. Perform a drive test over a known distance.

The distance should be at least 8 km (5 miles) or more. The speed should be 80-110 km/h (50-65 mph) if practical.

3. Use a scan tool in order to compare the indicated speed to the speedometer indication.
4. Record the initial and final odometer reading and the actual distance driven.

While at test speed, are the scan tool and speedometer indications within specified value of each other?

6 km/h (4 mph)

Go to Step 5

Go to Step 4

Replace the instrument cluster.

Is the repair complete?

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Go to Instrument Cluster System Check

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Divide the actual distance driven by the distance driven as indicated by the odometer.

Is the value between the specified range?

0.96-1.04

Go to Instrument Cluster System Check

Go to Step 6

Replace the instrument cluster.

Is the repair complete?

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Go to Instrument Cluster System Check

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