4.
Is DTC status displayed as Present?
Connect GDS to Data Link Connector(DLC).
Ignition "ON"
Monitor "Diagnostic Trouble Codes(DTC)" with GDS.
Is DTC status displayed as Present?
 | ▶ Go to "Monitor GDS Data" procedure. |
 | ▶ Go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Connect VMI to GDS and select oscilloscope.(2 Channel)
Channel A (+) : Pin No. 2(Signal High) connector (On CKPS Connector)
Channel A (-) : Pin No. 1(Signal Low) connector (On CKPS Connector)
Channel B (+) : Pin No. 2(CMPS Signal) connector (On CMPS Connector)
Channel B (-) : Ground
IG "ON" / Engine "ON"
Inspection condition : Engine Idle
Specification : Refer to Fig. below
Ignition Switch "OFF"
Connect VMI to GDS and select oscilloscope.(2 Channel)
Channel A (+) : Pin No. 3(Signal High) connector (On CKPS Connector)
Channel A (-) : Pin No. 2(Signal Low) connector (On CKPS Connector)
Channel B (+) : Pin No. 2(CMPS Signal) connector (On CMPS Connector)
Channel B (-) : Ground
IG "ON" / Engine "ON"
Inspection condition : Engine Idle
Specification : Refer to Fig. below
Fig.1 ) At idle, CKPS & CMPS Signal Waveform. The ECM determines the firing order with Low and High signal of the CKPS Ref. point and the CMPS Ref. point.
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 "Terminal & Connector Inspection" procedure. |
