Fault-Tracing Information

Fault-tracing

Checking components and wiring
Check the signal line for open circuit, short-circuit to ground and short-circuit to voltage.
Take readings between:
- Engine Control Module (ECM) #B27 (#C27) and system relay #2.
Check the engine control module (ECM) and the system relay connector. Check for contact resistance. Check for oxidation.
Try a new system relay if no fault is found during the above fault-tracing.
Remedy as necessary.

Other information
- Connecting the breakout box, B5254T7 Connecting the Breakout Box, Engine Control Module (ECM)
- Signal specification, B5254T7 Signal Specification
- For further information about the fuses and relays, see the Wiring Diagram
- Checking wiring and terminals Checking Wiring and Terminals





Continue - Fault-tracing information

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Fault-tracing information

Attempt New Test - Checking components and wiring

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