Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test 2: The ABS Module Does Not Respond To The Scan Tool
2009 Mazda Tribute 4WD L4-2.5LSECTION Pinpoint Test 2: The ABS Module Does Not Respond To The Scan Tool
PINPOINT TEST 2: THE ABS MODULE DOES NOT RESPOND TO THE SCAN TOOL
Normal Operation
The ABS module communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits (W/L) (HS-CAN +) and (W) (HS-CAN -) provide the network connection to the ABS module. The ABS module shares the HS-CAN network with the PCM, the 4X4 module, the instrument cluster (IC), the restraints module (RCM), the power steering module (PSCM) and the occupant classification sensor module (OCSM). Voltage for the ABS module is provided by circuits (GY), (R) and (Y/R). Ground is provided by circuit (B/G).
Possible Causes
- Fuse
- Wiring, terminals or connectors
- ABS module
Diagnostic Procedure
CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE:Failure to disconnect the battery when instructed will result in false resistance readings. See Battery Disconnect.
Step 1-Step 3:
Step 4:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.