Pre-Heating System On-Vehicle Inspection
INSPECT LIGHTING TIME OF GLOW INDICATOR LIGHT
INSPECT PRE-HEATING
INSPECT AFTER GLOW TIME
Pre-Heating System -- On-Vehicle Inspection |
- NOTICE:
- Turn the ignition switch off for 60 seconds before performing the following inspections.
| 1. INSPECT LIGHTING TIME OF GLOW INDICATOR LIGHT |
Turn the ignition switch to ON and measure the length of time that the light remains illuminated.
- Lighting time:
- Refer to the graph
Text in Illustration*a
| Glow Indicator Lighting Time
|
*b
| Engine Coolant Temperature
|
If the result is not as specified, check the ECM, engine coolant temperature sensor, glow plugs and glow plug relay.
Turn the ignition switch to ON and measure the length of time that battery voltage is applied to the glow plugs.
- Pre-heating Time :
Engine Coolant Temperature
| Specified Condition
|
40°C (104°F) or higher
| 1 second
|
Below 40°C (104°F)
| Refer to the graph
(15 seconds at longest)
|
Text in Illustration*a
| Pre-heating Time
|
*b
| Battery Voltage
|
If the result is not as specified, check the ECM, engine coolant temperature sensor, glow plugs and glow plug relay.
Turn the ignition switch to START, and check that battery voltage is applied to the glow plugs.
While cranking the engine, measure the time that battery voltage is applied to the glow plugs.
- Pre-heating Time:
Engine Coolant Temperature
| Specified Condition
|
40°C (104°F) or higher
| 1 second
|
Below 40°C (104°F)
| Refer to the graph (15 seconds at longest)
|
| 3. INSPECT AFTER GLOW TIME |
After starting the engine, measure the time that battery voltage is applied to the terminal SREL of the ECM.
- After glow time:
- Refer to the graph
Text in Illustration*a
| After Glow Time
|
*b
| Engine Coolant Temperature
|
If the result is not as specified, check the ECM, engine coolant temperature sensor, glow plugs and glow plug relay.
