Instrument Cluster Inspection: Speedometer

Using the input/output check mode 

1. Inspect the speedometer by setting it in the input/output check mode DTC 12.

Using a speedometer tester 

1. Adjust the tire air pressure to the specification.
2. Using a speedometer tester, verify that the speedometer indication is within the allowable ranges shown below.
   SPEEDOMETER TESTER INDICATION AND RANGE SPECIFICATION
   
   

   Speedometer tester indication (km/h)	Allowable range (km/h)
   20	18-22
   40	38-42
   60	58-62
   80	78-82
   100	97-102
   120	117-122
   140	136-142

   SPEEDOMETER TESTER INDICATION AND RANGE SPECIFICATION
   
   

   Speedometer tester indication (mph)	Allowable range (mph)
   10	9-11
   20	19-21
   30	29-31
   40	39-41
   50	49-51
   60	59-61
   70	69-71
   80	78-82

3. Verify that fluctuation of the speedometer needle is within the allowable range.
   • If the speedometer needle does not move or the indication is outside of the allowable range, inspect the PCM, TCM, ABS HU/CM (vehicles with ABS), VSS (vehicles without ABS) and related wiring harnesses.
     • If the PCM, TCM, ABS HU/CM (vehicles with ABS), VSS (vehicles without ABS) and related wiring harnesses are normal, replace the instrument cluster.

   Needle fluctuation allowable range 

   Within 3.0 km/h