Component Tests and General Diagnostics
INSTRUMENT CLUSTER INSPECTION
Speedometer
Using the input/output check mode
1. Inspect the speedometer by setting it to check code 12 of the input/output check mode. Instrument Cluster Input/Output Check Mode
Using a speedometer tester
1. Adjust the tire pressure to the specification.
2. Using a speedometer tester, verify that the tester reading is as indicated in the table below.
3. Verify that the speedometer reading is within the range indicated in the table.
- If the speedometer does not move or the indication is not within the allowable range, inspect the PCM and related wiring harnesses.
- If the PCM and related wiring harnesses are normal, replace the instrument cluster.
Tachometer
Using the input/output check mode
1. Inspect the tachometer by setting it to check code 13 of the input/output check mode. 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.
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
- When using the IDS (laptop PC)
1 Select "Data logger"
2 Select "Module"
3 Select "IC".
- When using the PDS (Pocket PC)
1 Select "Module test"
2 Select "IC".
3 Select "Data logger"
3. Select "TACH" from PID/DATA Monitor Table.
4. Verify the monitored value according to the directions on the screen.
NOTE:
- The PID data screen function is used for monitoring the calculated value of input/output signals in the module. Therefore, if the monitored value of the output parts is not within the specification, it is necessary to inspect the monitored value of input parts corresponding to the applicable output part control. In addition, because the system does not display an output part malfunction as an abnormality in the monitored value, it is necessary to inspect the output parts individually.
Fuel gauge
1. Inspect the fuel gauge by setting it to check code 23 of the input/output check mode. Instrument Cluster Input/Output Check Mode
Water temperature gauge
1. Inspect the water temperature gauge by setting it to check code 25 of the input/output check mode. Instrument Cluster Input/Output Check Mode