Component Tests and General Diagnostics

PCM INSPECTION [L3 WITH TC]

Without Using the M-MDS

NOTE:
- The PCM terminal voltage can vary with the conditions when measuring and changes due to aged deterioration on the vehicle, causing false diagnosis. Therefore determine comprehensively where the malfunction occurs among the input systems, output systems, and the PCM.

PCM terminal voltage table (Reference)





































*1
- Without advanced keyless entry and push button start system
*2
- With advanced keyless entry and push button start system

Inspection Using An Oscilloscope (Reference)

APP sensor (No.2) signal





PCM terminals
- 1AC (+)-->body ground (-)
Oscilloscope setting
- 5 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Fan control module signal





PCM terminals
- 1AE (+)-->body ground (-)
Oscilloscope setting
- 5 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Generator field coil control signal





PCM terminals
- 1AW (+)-->body ground (-)
Oscilloscope setting
- 0.5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Generator output voltage signal





PCM terminals
- 1AX (+)-->body ground (-)
Oscilloscope setting
- 2 V/DIV (Y),1 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

A/F sensor heater control signal





PCM terminals
- 2C (+)-->body ground (-)
Oscilloscope setting
- 5 V/DIV (Y), 200 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

CMP sensor signal





PCM terminals
- 2S (+)-->body ground (-)
Oscilloscope setting
- 2 V/DIV (Y), 100 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

CKP sensor signal





PCM terminals
- 2W (+)-->body ground (-)
Oscilloscope setting
- 2 V/DIV (Y), 5 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Wastegate control solenoid valve signal





PCM terminals
- 2AA (+)-->body ground (-)
Oscilloscope setting
- 20 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
- Switch the ignition to ON

Purge control signal





PCM terminals
- 2AB (+)-->body ground (-)
Oscilloscope setting
- 10 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
- Racing

OCV signal





PCM terminals
- 2AF (+)-->body ground (-)
Oscilloscope setting
- 5 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
- Racing

IGT1, IGT2, IGT3, IGT4 control signals





PCM terminals
- IGT1 (No.1): 2BA (+)-->body ground (-)
- IGT2 (No.2): 2AW (+)-->body ground (-)
- IGT3 (No.3): 2AX (+)-->body ground (-)
- IGT4 (No.4): 2AT (+)-->body ground (-)
Oscilloscope setting
- 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Fuel injection control (-)





PCM terminals
- Fuel injection No.1: 2BB (+)-->body ground (-)
- Fuel injection No.2: 2BC (+)-->body ground (-)
- Fuel injection No.3: 2BD (+)-->body ground (-)
- Fuel injection No.4: 2AZ (+)-->body ground (-)
Oscilloscope setting
- 10 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
- Idle after warm up

Fuel injection control (+)





PCM terminals
- Fuel injection No.1, No.4: 2BG (+)-->body ground (-)
- Fuel injection No.2, No.3: 2BH (+)-->body ground (-)
Oscilloscope setting
- 20 V/DIV (Y), 400 microsec/DIV (X), DC range
Vehicle condition
- Idle after warm up

Using the M-MDS

NOTE:
PIDs for the following parts are not available on this model. Perform the specific inspections for the following parts:
- CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [L3 WITH TC].)
- Main relay

1. Connect the M-MDS to the DLC-2.





2. Switch the ignition to ON.
3. Measure the PID value.
- If PID value is not within the specification, follow the instructions in the "Inspection item" column.

NOTE:
- The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.
- For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage.
- The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows.
- ACCS, ALTF, ARPMDES, EVAPCP, EVAPCV, FAN_DUTY, FP, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, TEST, VT DUTY1 wt, WGC

PID/DATA monitor table (reference)