Instrument Cluster Inspection: Tachometer
Using the input/output check mode
- Inspect the tachometer by setting it to check code 13 of the input/output check mode. (See INSTRUMENT CLUSTER INPUT/OUTPUT CHECK MODE .)
Using M-MDS
CAUTION:
- If the engine speed exceeds the allowable range, the engine could be damaged. Therefore, when inspecting the tachometer, do not allow the engine speed to exceed the allowable range indication on the tachometer.
- Connect the M-MDS to the DLC-2 (16-pin).
- After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
When using the IDS (notebook PC)
- Select the "Toolbox" tab.
- Select "DataLogger".
- Select "Module".
- Select "HEC".
When using the PDS (pocket PC)
- Select "Module Tests".
- Select "HEC".
- Select "DataLogger".
- Compare the data monitor item (IC_TACHO) with the tachometer indication.
- If the tachometer does not operate properly, inspect the PCM and related wiring harnesses.
- If the PCM and related harnesses do not have any malfunction, replace the instrument cluster.
- If the tachometer does not operate properly, inspect the PCM and related wiring harnesses.