Component Inspection
■ Check CKPS & CMPS Signal Waveform (A/T)
1.

Ignition Switch "OFF"

2.

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

3.

IG "ON" / Engine "ON"

4.

Inspection condition : Engine Idle

Specification : Refer to Fig. below

■ Check CKPS & CMPS Signal Waveform (M/T)
5.

Ignition Switch "OFF"

6.

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

7.

IG "ON" / Engine "ON"

8.

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.

9.

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 "Check camshaft tooth" procedure.

■ Check camshaft tooth
10.

Ignition Switch "OFF"

11.

Disconnect battery (-) cable.

12.

Refer to "Shop Manual" and disconnect the CKPS connector.

13.

Check the camshaft tooth through the CMPS hole.

14.

Have any problem been found?

caution

Engine oil can be leak when remove the CMPS on the engine idle or after engine stop. There may be injury caused by engine heat.

▶ If no problems were found with the circuits or connectors, Replace the camshaft assembly and go to "Verification of Vehicle Repair" procedure.

▶ If no problems were found with the circuits or connectors, Replace the CMPS and go to "Verification of Vehicle Repair" procedure.

warning

When install a part, tighten it within specification.

When drop down the part, check part's operating condition whether it is damaged or not.

Яндекс.Метрика