Monitor DTC Status
1.

Connect GDS to Data Link Connector(DLC).

2.

Ignition "ON"

3.

Monitor "Diagnostic Trouble Codes(DTC)" with GDS.

4.

Is DTC status displayed as Present?

▶ Go to "Monitor GDS Data" procedure.

▶ Go to "Verification of Vehicle Repair" procedure.

Monitor GDS Data
1.

Ignition Switch "OFF"

2.

Connect VMI to GDS and select oscilloscope.(2 Channel)

Channel A (+) : Pin No. 2(Low) connector (On Injector Connector)

Channel A (-) : Ground

Channel B (+) : Pin No. 1(High) connector (On Injector Connector)

Channel B (-) : Ground

3.

Inspection condition : Engine Idle

Specification : Refer to Fig. below

■ Check CKPS & CMPS Signal Waveform (M/T)
4.

Ignition Switch "OFF"

5.

Connect VMI to GDS and select oscilloscope.(2 Channel)

Channel A (+) : Pin No. 2(Low) connector (On Injector Connector)

Channel A (-) : Ground

Channel B (+) : Pin No. 1(High) connector (On Injector Connector)

Channel B (-) : Ground

6.

IG "ON" & Engine "ON"

Specification : Refer to Fig. below

Fig.1 ) At Idle, Waveform of Injector Control Low & High and Current

Fig.2 ) At 2000rpm, Waveform of Injector Control Low & High and Current

Fig.3 ) At Accelerating, Waveform of Injector Control Low & High and Current

7.

Is the measured value within specification?

▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.

▶ Go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика