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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSTOYOTA2004TACOMA PRERUNNER V6-3.4L (5VZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESDATA LIST
2004 Toyota Tacoma PreRunner V6-3.4L (5VZ-FE)
Data List
2004 Toyota Tacoma PreRunner V6-3.4L (5VZ-FE)SECTION Data List
DATA LIST
HINT: Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.
NOTE: In the table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
a. Warm up the engine.
b. Turn the ignition switch to OFF.
c. Connect the OBD II scan tool or the Hand-held tester to the DLC3.
d. Turn the ignition switch to ON.
e. Turn the tester or scan tool ON.
f. Enter: DIAGNOSIS/ENHANCED OBD II/DATA LIST.



g. According to the display on the tester, read the DATA LIST items.
HINT: Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.
NOTE: In the table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
a. Warm up the engine.
b. Turn the ignition switch to OFF.
c. Connect the OBD II scan tool or the Hand-held tester to the DLC3.
d. Turn the ignition switch to ON.
e. Turn the tester or scan tool ON.
f. Enter: DIAGNOSIS/ENHANCED OBD II/DATA LIST.
Part 1:
Part 2:
Part 3:
g. According to the display on the tester, read the DATA LIST items.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.