Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

Refer to dtc p0115

Dtc no.

Dtc detection condition

Trouble area

P0116 If engine coolant temperature (ect) was between 35 c (95 F) and 60 c (140 F) when starting the engine, and also conditions (a) and (b) are met:
  1.  vehicle has run with acceleration and deceleration
  2.  etc still remains within 3 c (5.4 F) of the starting temperature (2 trip detection logic)
  • Engine coolant temperature sensor
If engine coolant temperature (ect) was more than 60 c when starting the engine, and also conditions (a) and (b) are met:
  1.  vehicle has run with acceleration and deceleration
  2.  ect still remains within 1 c (1.8 F) of the starting temperature (6 trip detection logic)

Monitor description

The engine coolant temperature (ect) sensor is used to monitor the engine coolant temperature. The ect sensor has a thermistor that varies its resistance depending on the temperature of the engine coolant. When the coolant temperature is low, the resistance in the thermistor increases. When the temperature is high, the resistance drops. The variations in resistance are reflected in the voltage output from the sensor. The ecm monitors the sensor voltage and uses this value to calculate the engine coolant temperature. When the sensor output voltage deviates from the normal operating range, the ecm interprets this as a fault in the ect sensor and sets a dtc.

Examples:

  1.  upon starting the engine, the coolant temperature (ect) was between 35 c (95 F) and 60 c (140 F).

    If after driving for 250 seconds, the ect still remains within 3 c (5.4 F) of the staring temperature, a dtc will be set. (2 Trip detection logic)

  2.  upon starting the engine, the coolant temperature (ect) was over 60 c (140 F). If after driving for 250 seconds, the ect still remains within 1 c (1.8 F) of the starting temperature, a dtc will be set. (6 Trip detection logic)

Monitor strategy

Typical enabling conditions

Typical enabling conditions

Typical malfunction thresholds

Typical malfunction thresholds

Component operating range

Component operating range

Wiring diagram

Wiring diagram

Refer to dtc p0115

Engine coolant temp. Circuit range/performance problem
Dtc p0116 engine coolant temp. Circuit range/performance problem ...

Inspection procedure
Hint: if dtcs p0115, p0116, p0117, p0118 and p0125 are output simultaneously, the engine coolant temperature sensor circuit may be open or short. Perform the troubleshooting of dtc p0115, ...

Other materials:

Driving
►  Automatic transmission or continuously variable transmission 1 With the brake pedal depressed, shift the shift lever to D. (, 174, 176) 2 Release the parking brake. 3 Gradually release the brake pedal and gently depress the accelerator pedal to accelerate the vehicle. ► ...

Circuit description
The crankshaft position sensor (ne signal) consists of a magnet, iron core and pickup coil. The ne signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The ne signal sensor generates 34 signals for each engine revolution. This sensor monitors a p ...

Dialing from the contacts list
You can dial a number from the contact data imported from your cellular phone. The system has one contact for each registered phone. Up to 2500 contacts may be stored in each contact. 1 Display the phone screen. 2 Select Contacts tab. 3 Choose the desired contact to call from the list. 4 C ...

2011-2019 Copyright www.tcorolla.net