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1. |
Test OPU ground circuit: Measure resistance between OPU and chassis
ground using the backside of OPU harness connector as TCM side check
point. If the problem is found, repair it.
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|
2. |
Test OPU connector: Disconnect the OPU connector and visually
check the ground terminals on OPU side and harness side for bent pins
or poor contact pressure. If the problem is found, repair it.
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|
3. |
If problem is not found in Step 1 and 2, the OPU could be faulty.
If so, make sure there were no DTC's before swapping the OPU with a
new one, and then check the vehicle again. If DTC's were found, examine
this first before swapping OPU.
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4. |
Re-test the original OPU: Install the original OPU (may be broken)
into a known-good vehicle and check the vehicle. If the problem occurs
again, replace the original OPU with a new one. If problem does not
occur, this is intermittent problem (Refer to “Intermittent Problem
Inspection Procedure” in Basic Inspection Procedure).
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1.
Install is the reverse of the removal.
...
Hyundai Elantra MD/UD: Inspection
