Component Inspection
- ISCA visual check
- Key "OFF".
- Disassemble ISCA.
- Check contamination, damage or stuck on ISCA.
- Check the operating sound when key turns "OFF" to "ON".
- Is ISCA OK?
YES
- Go to " 2 ISCA check" procedure.
NO
- Substitute with a known - good ISCA and check for proper operation.
If the problem is corrected, replace ISCA and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- ISCA check
- Key "OFF".
- Disassemble ISCA.
- Measure the resistance between terminal 1 and 2 of ISCA harness connector. (Component side)
- Measure the resistance between terminal 2 and 3 of ISCA harness connector. (Component side)
- Is the measured resistance within specifications?
YES
- Substitute with a known - good ECM and check for proper operation.
If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known - good ISCA and check for proper operation.
If the problem is corrected, replace ISCA and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Substitute with a known - good ECM and check for proper operation.