| OPU Problem Inspection Procedure
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|
1. |
TEST OPU GROUND CIRCUIT: Measure resistance between OPU and chassis
ground using the backside of OPU harness connector as OPU 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
|
Refer to DTC manual code “P1775, P1777” to inspect oil
pump unit.
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1.
Install in the reverse of removal.
...
Description
The present brake switch is used as an input variable for the ISG function
to detect bracke operation.
...
Hyundai Elantra MD/UD: Inspection
