|
|
DIAGNOSTIC PROCEDURE Perform diagnostic test mode II (self- OK E NG Check ignition signal circuit CHECK INPUT SIGNAL. 1. Start engine. 2. Select “ECU INPUT SIGNALS” in Data Monitor. 3. Read out the value of “ENGINE SPEED”. ----------------------------------------------------------------------------------------------------------------------- OR ----------------------------------------------------------------------------------------------------------------------- 1. Start engine. 2. Check voltage between TCM ter- minal q 39 and ground. Voltage (Idle speed): Approximately 0.8V Voltage (2,000 rpm): Approximately 2.2V OK E NG Check the following items: I Harness for short or I Resistor Refer to EC section Perform “SELF-DIAGNOSIS CODE CON- OK E NG 1. Perform TCM input/ output signal inspection. 2. If NG, recheck TCM pin terminals for damage or INSPECTION END YAT320 H H H TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG Engine Speed Signal (Cont’d) AT-81 |