30400-ZW9-003 MODULE, IGNITION CONTROL (CDI) (Honda Code 6640502). Honda
BF8DK0 LHA, BF8DK0 LHSA, BF8DK0 SHA, BF9.9D1 LHA, BF9.9D1 LHSA, BF9.9D1 LRA, BF9.9D1 SA, BF9.9D1 SHA, BF9.9D1 SHSA, BF9.9D1 SRA, BF9.9D2 LHA, BF9.9D2 LHSA, BF9.9D2 LRA, BF9.9D2 SA, BF9.9D2 SHA, BF9.9D2 SHSA, BF9.9D2 SRA, BF9.9D3 LHA, BF9.9D3 LHSA, BF
MODULE
Price: query
Rating:
Compatible models:
BF8DK0 LHA
BF8DK0 LHSA
BF8DK0 SHA
BF9.9D1 LHA
BF9.9D1 LHSA
BF9.9D1 LRA
BF9.9D1 SA
BF9.9D1 SHA
BF9.9D1 SHSA
BF9.9D1 SRA
BF9.9D2 LHA
BF9.9D2 LHSA
BF9.9D2 LRA
BF9.9D2 SA
BF9.9D2 SHA
BF9.9D2 SHSA
BF9.9D2 SRA
BF9.9D3 LHA
BF9.9D3 LHSA
BF9.9D3 LRA
BF9.9D3 SA
BF9.9D3 SHA
BF9.9D3 SHSA
BF9.9D3 SRA
BF9.9D4 LHA
BF9.9D4 LHSA
BF9.9D4 LRA
BF9.9D4 SHA
BF9.9D4 SHSA
BF9.9D4 SRTA
BF9.9D5 LHA
BF9.9D5 LHSA
BF9.9D5 LRA
BF9.9D5 SHA
BF9.9D5 SHSA
BF9.9D5 SRTA
BF9.9D6 LHA
BF9.9D6 LHSA
BF9.9D6 LRA
BF9.9D6 SHA
BF9.9D6 SHSA
BF9.9D6 SRTA
BF9.9DK0 LHA
BF9.9DK0 LHSA
BF9.9DK0 LRA
BF9.9DK0 SHA
BF9.9DK0 SHSA
BF9.9DK2 LHA
BF9.9DK2 LHSA
BF9.9DK2 LRA
BF9.9DK2 SHA
BF9.9DK2 SHSA
BF9.9DK3 LHA
BF9.9DK3 LHSA
BF9.9DK3 LRA
BF9.9DK3 SHA
BF9.9DK3 SHSA
BFP8DK0 LHA
BFP8DK0 LHTA
BFP8DK0 LRTA
BFP8DK0 XHSA
BFP8DK2 LHTA
BFP8DK2 LRTA
BFP8DK2 XHSA
BFP9.9D1 LHA
BFP9.9D1 LHSA
BFP9.9D1 LRA
BFP9.9D1 XHA
BFP9.9D1 XHSA
BFP9.9D1 XRA
BFP9.9D2 LHA
BFP9.9D2 LHSA
BFP9.9D2 LRA
BFP9.9D2 XHA
BFP9.9D2 XHSA
BFP9.9D2 XRA
BFP9.9D3 LHA
BFP9.9D3 LHSA
BFP9.9D3 LRA
BFP9.9D3 XHA
BFP9.9D3 XHSA
BFP9.9D3 XRA
BFP9.9D4 LHA
BFP9.9D4 LHTA
BFP9.9D4 LRA
BFP9.9D4 LRTA
BFP9.9D4 XHA
BFP9.9D4 XHSA
BFP9.9D4 XHTA
BFP9.9D4 XRTA
BFP9.9D5 LHA
BFP9.9D5 LHTA
BFP9.9D5 LRA
BFP9.9D5 LRTA
BFP9.9D5 XHA
BFP9.9D5 XHSA
BFP9.9D5 XHTA
BFP9.9D5 XRTA
BFP9.9D6 LHA
BFP9.9D6 LHTA
BFP9.9D6 LRA
BFP9.9D6 LRTA
BFP9.9D6 XHA
BFP9.9D6 XHSA
BFP9.9D6 XHTA
BFP9.9D6 XRTA
BFP9.9DK0 LHA
BFP9.9DK0 LHTA
BFP9.9DK0 LRA
BFP9.9DK0 LRTA
BFP9.9DK0 XHA
BFP9.9DK0 XHSA
BFP9.9DK0 XHTA
BFP9.9DK0 XRTA
BFP9.9DK2 LHTA
BFP9.9DK2 LRTA
BFP9.9DK2 XHA
BFP9.9DK2 XHSA
BFP9.9DK2 XHTA
BFP9.9DK2 XRTA
BFP9.9DK3 LHTA
BFP9.9DK3 LRTA
BFP9.9DK3 XHA
BFP9.9DK3 XHSA
BFP9.9DK3 XHTA
BFP9.9DK3 XRTA
Honda
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Information:
Illustration 1 g03029438
Schematic for the compression brake circuit
Probable Causes
Codes
Short circuit
Open circuitRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Turn the keyswitch to ON.
C. Access the diagnostic overrides under the "Diagnostics" menu.
D. Start the "Compression Brake Low/High Override".
E. Once Cat ET displays the status of the compression brake solenoid, stop the "Compression Brake Low/High Override".
F. Monitor the "Active Diagnostic Code" screen on Cat ET. Record any active diagnostic codes.
G. Start the "Compression Brake Med/High Override".
H. Once Cat ET displays the status of the compression brake solenoid, stop the "Compression Brake Med/High Override".
I. Monitor the "Active Diagnostic Code" screen on Cat ET. Record any active diagnostic codes.
Codes
Result: A 791-5, or 792-5 diagnostic code is active.
Proceed to Test Step 2.
Result: A 791-6, or 792-6 diagnostic code is active.
Proceed to Test Step 4.
2. Create a Short Between the Wires of the Suspect Compression Brake Solenoid at the Valve Cover Connector
Note: To troubleshoot a 791-5 diagnostic code, use the "Compression Brake Low/High Override" in Cat ET. To troubleshoot a 792-5 diagnostic code, use the "Compression Brake Med/High Override" in Cat ET.
A. Turn the keyswitch to OFF.
B. Disconnect the harness at the valve cover connector.
C. Fabricate a jumper wire to create a short between the supply wire for the suspect compression brake solenoid and engine ground.
D. Turn the keyswitch to ON.
E. Access the diagnostic overrides under the "Diagnostics" menu.
F. Start the override for the compression brake.
G. Once Cat ET displays the status of the compression brake solenoid, stop the override.
H. Monitor the "Active Diagnostic Code" screen in Cat ET. Record any active diagnostic codes.
I. Turn the keyswitch to OFF. Remove the jumper wire.
Note: A -5 open circuit diagnostic code will be active for the other compression brake solenoid. Ignore the diagnostic codes for the other compression brake solenoid. Ignore any diagnostic codes for the injector solenoids.
Short circuit
Result: A 791-6, or 792-6 diagnostic code is active. The harness wiring is OK.
Proceed to Test Step 3.
Result: A 791-5, or 792-5 diagnostic code is active.
Repair: Repair the harness or replace the harness.
If the problem is not resolved, proceed to Test Step 3.
3. Create a Short Circuit at the Compression Brake Solenoid
Note: Two solenoids are activated to create a medium braking action. The open could be in either solenoid or in the harness. To isolate the problem for a medium braking action, run this test step for each of the solenoids. The short must be created separately at each solenoid.
Note: To troubleshoot a 791-5 diagnostic code, use the "Compression Brake Low/High Override" on Cat ET. To troubleshoot a 792-5 diagnostic code, use the "Compression Brake Med/High Override" on Cat ET.
A. Turn the keyswitch to OFF.
B. Remove the valve cover.
C. Reconnect the valve cover connector.
D. Disconnect the connector on the suspect compression brake solenoid.
E. Inspect the terminals on the connector for the compression brake solenoid for damage.
F. Fabricate a jumper wire to short the two wires for the suspect solenoid on the solenoid connector. Crimp a pin to each end of the jumper wire.
G. Make sure that the solenoid connector securely holds the jumper wire.
Note: Worn terminals and/or damaged terminals on the solenoid connector could cause an intermittent "Open".
H. Turn the keyswitch to ON.
I. Access the diagnostic override under the "Diagnostics" menu.
J. Start the override for the compression brake.
K. Once Cat ET displays the status of the compression brake solenoid, stop the override.
L. Monitor the "Active Diagnostic Code" screen on Cat ET. Record any active diagnostic codes.
M. Turn the keyswitch to OFF. Remove the jumper wire.
Short circuit
Result: A 791-6 or a 792-6 diagnostic code is active. The harness wiring between the connector for the compression brake solenoid and the ECM is OK.
Repair: Replace the suspect compression brake solenoid. Verify that the problem is resolved.
Result: A 791-5 or a 792-5 diagnostic code is active.
Repair: Repair the harness or replace the harness between the connector for the compression brake solenoid and the valve cover connector.
If the problem is not resolved, proceed to Test Step 4.
4. Create an Open Between the Wires of the Suspect Compression Brake Solenoid at the Valve Cover Connector
Note: To troubleshoot a 791-6 diagnostic code, use the "Compression Brake Low/High Override" on Cat ET. To troubleshoot a 792-6 diagnostic code, use the "Compression Brake Med/High Override" on Cat ET.
A. Turn the keyswitch to OFF.
B. Disconnect the harness at the valve cover connector.
C. Turn the keyswitch to ON.
D. Access the diagnostic override under the "Diagnostics" menu.
E. Start the override for the compression brake.
F. Once Cat ET displays the status of the compression brake solenoid, stop the override.
G. Monitor the Active Diagnostic Code screen on Cat ET. Record any active diagnostic codes.
H. Turn the keyswitch to OFF. Remove the wire short.
I. Reconnect the valve cover connector.
Open circuit detected
Result: A 791-5 or a 792-5 diagnostic code is active. The harness wiring between the valve cover connector and the ECM is OK.
Proceed to Test Step 5.
Result: A 791-6 or a 792-6 diagnostic code is active.
Repair: Repair the harness or replace the harness between the P2 connector and the valve cover connector.
If the problem is not resolved, proceed to Test Step 5.
5. Create an Open Circuit at the Compression Brake Solenoid
Note: Two solenoids are activated to create a medium braking action. The short could be in either solenoid or in the harness. To isolate the problem for a medium braking action, run this test step for each of the solenoids. The open must be created separately at each solenoid.
Note: To troubleshoot a 791-6 diagnostic code, use the "Compression Brake Low/High Override" on Cat ET. To troubleshoot a 792-6 diagnostic code, use the "Compression Brake Med/