Engine. Lexus Is250, Is220D. Gse20 Ale20
2Ad-Fhv Starting. Lexus Is250, Is220D. Gse20 Ale20
Pre-Heating System -- On-Vehicle Inspection |
- NOTICE:
- Turn the engine switch off for 60 seconds before performing the following inspections.
| 1. INSPECT ILLUMINATION DURATION OF GLOW INDICATOR LIGHT |
Turn the engine switch on (IG), and measure the duration of time that the light remains illuminated.
- Light illumination duration:
- Refer to the graph and the table.
- Light illumination duration:
Water temperature
°C (°F)Light illumination time
(sec.)-20 (-4) 10 to 12 -15 (5) 5 to 6 0 (32) 3 to 4 35 (95) 0.45 to 1
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| 2. INSPECT PRE-HEATING |
Turn the engine switch on (IG) and measure the length of time that battery voltage is applied to the glow plugs.
- Pre-heating time:
Engine coolant temperature Pre-heating time more than 40°C (104°F) 1 sec. 40°C (104°F) or less Refer to the graph*1
(15 sec. at the longest)
If the result is not as specified, check the ECM, engine coolant temperature sensor, glow plug and glow plug relay.
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Turn the engine switch on (START) and verify that battery voltage is applied to the glow plugs.
While cranking the engine, measure the length of time that battery voltage is applied to the glow plugs.
- Pre-heating time:
Engine coolant temperature Pre-heating time (Battery Voltage 14.5 V or less) Pre-heating time (Battery Voltage 14.5 V or more) more than 40°C (104°F) 1 sec. 1 sec. 40°C (104°F) or less 1 sec. Voltage is constantly applied while cranking the engine.
| 3. INSPECT AFTER GLOW TIME |
After the engine starts, measure the length of time that battery voltage remains present at terminal GREL (E59-58) of the ECM.
- After glow time:
- Refer to the graph.
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