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.
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HOMESERVICE MANUALSSCION2006XB L4-1.5L (1NZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSSERVICE PRECAUTIONS
2006 Scion xB L4-1.5L (1NZ-FE)
Information Bus: Service Precautions
2006 Scion xB L4-1.5L (1NZ-FE)SECTION Service Precautions
CAN COMMUNICATION SYSTEM
PRECAUTION
1. HANDLING PRECAUTIONS FOR STEERING SYSTEM
a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
2. HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
a. This vehicle is equipped with a Supplemental Restraint System (SRS), which includes a driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal, installation, inspection or replacement of parts), be sure to read the SRS section's PRECAUTION.
3. WIRE HARNESS REPAIR
a. After repairing the wire bus line with solder, wrap the repaired area with vinyl tape.
NOTE:
- The CANL bus line and CANH bus line must always be installed. When installing the lines, make sure to twist them.
- The difference in length of the CANL bus line and CANH bus line should be less than 100 mm (3.93 in.).
- Make sure the length between each twist of the wire connecting the connectors is 80 mm (3.15 in.) or less.
b. Do not use by-pass wiring between the connectors.
NOTE: If you perform by-pass wiring, the characteristic of the twisted wire harness will be lost.
4. CONNECTOR HANDLING
a. When checking the resistance of a connector, insert tester probes into the backside of the connector.
b. If the tester probes cannot be inserted, use repair wires to check the resistance as shown in the illustration.
PRECAUTION
1. HANDLING PRECAUTIONS FOR STEERING SYSTEM
a. Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.
2. HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM
a. This vehicle is equipped with a Supplemental Restraint System (SRS), which includes a driver airbag and front passenger airbag. Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal, installation, inspection or replacement of parts), be sure to read the SRS section's PRECAUTION.
3. WIRE HARNESS REPAIR
a. After repairing the wire bus line with solder, wrap the repaired area with vinyl tape.
NOTE:
- The CANL bus line and CANH bus line must always be installed. When installing the lines, make sure to twist them.
- The difference in length of the CANL bus line and CANH bus line should be less than 100 mm (3.93 in.).
- Make sure the length between each twist of the wire connecting the connectors is 80 mm (3.15 in.) or less.
b. Do not use by-pass wiring between the connectors.
NOTE: If you perform by-pass wiring, the characteristic of the twisted wire harness will be lost.
4. CONNECTOR HANDLING
a. When checking the resistance of a connector, insert tester probes into the backside of the connector.
b. If the tester probes cannot be inserted, use repair wires to check the resistance as shown in the illustration.
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.