Corvette V8-6.2L (2008)
‹› If less than the specified value, test the serial data circuit for a short to ground.
19. Ignition ON, test for less than 1 volt between the following serial data circuits and ground.
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Terminal 2
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Terminal 20
‹› If greater than the specified range, test the serial data circuit for a short to voltage.
20. Ignition OFF, test for infinite resistance between the serial data circuit terminal 2 and terminal 20.
‹› If less than the specified value, test for a short between the serial data circuits.
21. If the circuits test normal, replace the BCM.
DIAGNOSTIC 2
1. Connect the harness connector at the TEHC.
2. Ignition OFF, disconnect the harness connector at the ECM.
3. Ignition ON, attempt to communicate with the ESC module. Communication should not be available.
‹› If communication is established, replace the ECM.
4. Ignition OFF, disconnect the harness connector at the EBCM.
5. Ignition ON, attempt to communicate with the ESC module. Communication should not be available.
‹› If communication is established, test the following serial data circuits between the ECM and the EBCM for a short between the serial data
circuits, short to ground or a short to voltage. If the circuits test normal replace the EBCM.
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Terminal B9
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Terminal B12
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Terminal B9 and B12
6. Ignition OFF, disconnect the jx168 inline harness connector.
7. Ignition ON, attempt to communicate with the ESC module. Communication should not be available.
8. If communication is established, test the following serial data circuits between the headlamp module and the EBCM and the headlamp module and
the JX168 inline harness connector for a short between the serial data circuits, short to ground or a short to voltage.
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Headlamp module terminal 2
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Headlamp module terminal 5
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Headlamp module terminal 2 and 5
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Headlamp module terminal 3
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Headlamp module terminal 4
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Headlamp module terminal 3 and 4
‹› If the circuits test normal replace the headlamp module.
9. Ignition OFF, disconnect the harness connector at the TEHC module.
10. Ignition ON, attempt to communicate with the ESC module. Communication should not be available.
11. If communication is established, test the following serial data circuits between the TEHC module and the JX168 inline harness connector for a
short between the serial data circuits, short to ground or a short to voltage.
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Terminal 11
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Terminal 10
12. If the circuits test normal replace the TEHC module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests
and Procedures) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning)for control module replacement, setup, and programming
Scan Tool Does Not Power Up