Odometer Inaccurate Gas
Step | Action | Value(s) | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
DEFINITION: The distance measured by the odometer is incorrect, but the speedometer is correct. | ||||||||||
1 | Did you review the instrument cluster circuit description and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms | ||||||
2 |
Is the indicated distance driven within 4 % of the actual distance driven? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||||
3 | Inspect the vehicle control module (VCM) for the correct calibration for the axle ratio and tire size. Is the calibration correct for the axle ratio and tire size of the vehicle? | -- | Go to Step 4 | Go to Step 6 | ||||||
4 |
While at speed, are the scan tool and the speedometer indications are within 6 km/h (4 mph) of each other? | -- | Go to Step 5 | Go to Step 8 | ||||||
5 | Divide the actual distance driven by the distance driven indicated by the odometer. Is the indicated ratio between 0.96 - 1.04? | -- | System OK | Go to Step 7 | ||||||
6 | Have the axle ratio or the tire size been modified on the vehicle? | -- | Contact Technical Assistance | Go to Step 8 | ||||||
7 | Replace the instrument cluster. Refer to Instrument Cluster Replacement . Does the odometer read accurately? | -- | Go to Step 10 | Go to Step 9 | ||||||
8 | Recalibrate the VCM. Refer to:
Does the odometer read accurately? | -- | Go to Step 10 | Go to Step 3 | ||||||
9 | Replace the VCM. Refer to:
Does the odometer read accurately? | -- | Go to Step 10 | Go to Step 3 | ||||||
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 | ||||||
Odometer Inaccurate Diesel
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: The distance measured by the odometer is incorrect, but the speedometer is correct. | ||||
1 | Did you review the instrument cluster circuit description and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 |
Is the indicated distance driven within 4 % of the actual distance driven? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Inspect the vehicle speed sensor buffer (VSSB) for the correct axle and tire size ratio. Is the calibration correct for the axle ratio and tire size of the vehicle? | -- | Go to Step 4 | Go to Step 6 |
4 |
While at speed, are the scan tool and the speedometer indications are within 6 km/h (4 mph) of each other? | -- | Go to Step 5 | Go to Step 8 |
5 | Divide the actual distance driven by the distance driven as indicated by the odometer. Is the indicated ratio between 0.96 - 1.04? | -- | System OK | Go to Step 8 |
6 | Have the axle ratio or tire size been modified on the vehicle? | -- | Contact Technical Assistance | Go to Step 7 |
7 | Replace the VSSB module. Refer to Vehicle Speed Sensor Buffer Replacement . Does the odometer read accurately? | -- | Go to Step 9 | Go to Step 3 |
8 | Replace the instrument cluster. Refer to Instrument Cluster Replacement . Does the odometer read accurately? | -- | Go to Step 9 | Go to Step 3 |
9 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
