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1.

Connect GDS with 'DATA LINK CONNECTOR' (DLC).

2.

Warm engine up to normal operating temperature.

3.

Turn all the electrical devices including air conditioner OFF.

4.

Monitor "ENGINE SPEED" parameter on the GDS.

Specification : Current engine RPM is displayed.

Idle RPM corresponding to the engine coolant temperature

Engine Coolant Temperature	RPM
- 20 ℃	1050
- 10 ℃	1000
0 ℃	969
10 ℃	959
15 ℃	950
20 ℃	907
30 ℃	830
40 ℃	750
70 ℃	720

Idle RPM compensation corresponding to the load

Load condition	RPM
P/R//N/D	720
A/C ON	720
PTC ON	870
Battery voltage drop	900
APS fail	1250

Fig.1) Engine speed at Idle status

Fig.2) Engine speed at acceleration status. After warming up engine, thoroughly check "ENGINE SPEED" data so that engine rpm fluctuation,unstable engine rpm or Engine stalling.