Honda Element. Manual — part 35
Fig. 93: ATF Temperature Sensor Circuit Diagram
Fig. 94: ATF Temperature Graph
General Description
The ATF temperature sensor is a thermistor type sensor whose resistance changes according to the change in
ATF temperature. The powertrain control module (PCM) sends a 5 V reference voltage to the grounded sensor
2007 Honda Element EX
2007 ENGINE PERFORMANCE Advanced Diagnostics - Element
through a pull-up resistor. When the ATF temperature is low, the sensor resistance increases and the PCM
detects a high signal voltage. As the ATF temperature rises, the sensor resistance decreases and the PCM
detects a low signal voltage.
If the ATF temperature sensor signal does not change, the PCM detects a malfunction and a DTC is stored.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
MONITOR DESCRIPTION
Enable Conditions
1. Stuck at Low temperature
ENABLE CONDITIONS
2. Stuck at High temperature
ENABLE CONDITIONS
Execution
Once per driving cycle
Sequence
None
Duration
5 minutes or more
(1)
20 seconds or more
(2)
DTC Type
One drive cycle, MIL OFF, D indicator blinks
OBD Status
PASSED/FAILED/NOT COMPLETED (STILL TESTING)
(1)
Stuck at Low temperature is detected
(2)
Stuck at High temperature is detected
Condition
Minimum
Maximum
Battery voltage
11.0 V
-
ATF temperature
-
-4 °F (-20 °C)
Initial engine coolant
temperature
-
95 °F (35 °C)
Engine coolant
temperature
158 °F (70 °C)
-
Throttle position
4.0 °
-
Vehicle speed
19 mph (30 km/h)
-
No active DTCs
P0116, P0117, P0118, P0712, P0713, P0721, P0722
Other
After the engine coolant temperature reaches the fixed value, both the vehicle
speed and the throttle position meet the conditions for at least 5 minutes
Condition
Minimum
Maximum
Battery voltage
11.0 V
-
ATF temperature
230 °F (110 °C)
-
2007 Honda Element EX
2007 ENGINE PERFORMANCE Advanced Diagnostics - Element
Malfunction Threshold
1. Stuck at Low temperature
The ATF temperature rise is 9 °F (5 °C) or less after the ignition switch is turned ON, and the current
ATF temperature is -4 °F (-20 °C) or less for at least 5 minutes.
2. Stuck at High temperature
The ATF temperature drop is -9 °F (-5 °C) or less after the ignition switch is turned OFF, and the current
ATF temperature is 230 °F (110 °C) or more for at least 20 seconds.
Driving Pattern
1. Stuck at Low temperature
Start the engine with engine coolant temperature at 95 °F (35 °C) or less, and warm up the engine until
the engine coolant temperature reaches 158 °F (70 °C) or more. Then drive the vehicle at a speed of 19
mph (30 km/h) or more with the throttle position at 4.0 ° or more for at least 5 minutes.
2. Stuck at High temperature
Turn off the engine with the engine coolant temperature at 158 °F (70 °C) or more. Restart the engine
after the engine coolant temperature drops to 95 °F (35 °C) or less, and warm up the engine until the
engine coolant temperature reaches 158 °F (70 °C), and wait for at least 20 seconds.
Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
Diagnosis Details
Conditions for illuminating the indicator
When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the
PCM memory. The MIL does not come on.
Conditions for clearing the DTC
The DTC and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting
the battery.
Previous engine coolant temperature when the ignition
switch was turned OFF
158 °F (70 °C)
-
Present engine coolant temperature when the ignition switch
is turned ON
-
95 °F (35 °C)
Engine coolant temperature
158 °F (70 °C)
-
No active DTCs
P0116, P0117, P0118, P0712, P0713,
P0721, P0722
2007 Honda Element EX
2007 ENGINE PERFORMANCE Advanced Diagnostics - Element
DTC P0712 (28): ADVANCED DIAGNOSTICS
DTC P0712: SHORT IN ATF TEMPERATURE SENSOR CIRCUIT
Fig. 95: ATF Temperature Sensor Circuit Diagram
General Description
The ATF temperature sensor is a thermistor type sensor whose resistance changes according to the change in
ATF temperature. The powertrain control module (PCM) sends a 5 V reference voltage to the grounded sensor
through a pull-up resistor. When the ATF temperature is low, the sensor resistance increases and the PCM
detects a high signal voltage. As the ATF temperature rises, the sensor resistance decreases and the PCM
detects a low signal voltage.
When the ATF temperature sensor signal voltage to the PCM is under the specification, indicating that the
temperature is above the specification (a short to ground), a malfunction is detected and a DTC is stored.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
MONITOR DESCRIPTION
Enable Conditions
ENABLE CONDITIONS
Malfunction Threshold
Execution
Continuous
Sequence
None
Duration
10 seconds or more
DTC Type
One drive cycle, MIL OFF, D indicator blinks
OBD Status
PASSED/FAILED/NOT COMPLETED (STILL TESTING)
Condition
Minimum
Maximum
Battery voltage
11.0 V
-
No active DTCs
P0711, P0713
2007 Honda Element EX
2007 ENGINE PERFORMANCE Advanced Diagnostics - Element
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