CYLINDER HEAD TEMPERATURE (CHT) SENSOR INSPECTION [MZI-3.5]
RESISTANCE INSPECTION
1. Disconnect the CHT sensor connector.
2. Measure the resistance between the CHT sensor terminals.
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If it is not within the specification, replace the CHT sensor.
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If the monitor item status/specification (reference) is not within the specification, even though the
resistance is within the specification, perform the "Circuit Open/Short Inspection".
Measure the cylinder head temperature sensor resistance (approx.).
CYLINDER HEAD TEMPERATURE SENSOR RESISTANCE REFERENCE
Cylinder head temperature sensor characteristics graph (reference)
Fig. 37: Cylinder Head Temperature Sensor Characteristics Graph
Courtesy of MAZDA MOTORS CORP.
CIRCUIT OPEN/SHORT INSPECTION
NOTE:
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Before performing the following inspection, make sure to follow the
procedure as indicated in the troubleshooting flowchart. (see HOW TO
USE THIS MANUAL .)
Cylinder head temperature (°C {°F})
Resistance (kilohm)
20 {68}
37.387
80 {176}
3.775
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Control System (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:25:31 AM
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© 2005 Mitchell Repair Information Company, LLC.