Toyota Corolla Repair Manual: Indicator light circuit

Problem symptoms table

Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit. Hint: troubleshooting of the tvip system is based on the premise that the door ...

Circuit description

When the tvip system is preparing to be set, this circuit lights up the indicator light. When the system has been set, it continually turns the indicator light on for 0.2 Seconds and turns it off ...

Other materials:

System description
The ecm uses the signals from the throttle position sensor, air–flow meter and crankshaft position sensor to monitor the engagement condition of the lock–up clutch. Then the ecm compares the engagement condition of the lock–up clutch with the lock–up schedule in the ecm memory to detect mec ...

Inspection procedure
Hint: if different dtcs related to different systems that have terminal e2 as the ground terminal are output simultaneously, terminal e2 may be open. If dtc p0441 (purge flow), p0446 (vsv for ccv), p0451, p0452 or p0453 (evaporative pressure sensor) is output with dtc p0442 or p0456, ...

Circuit description
The vapor pressure sensor and the vsv for the canister closed valve (ccv) are used to detect abnormalities in the evaporative emission control system. The ecm decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal. Dtc p0 ...