Toyota Tundra 2005 Service - Repair - Maintenance page 1225

INSPECTION PROCEDURE
HINT:
Troubleshoot each trouble symptom in accordance with the chart below .
MIL remains on
MIL does not light up
1 Clear DTC.
PREPARATION:
(a) Connect the hand−held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand−held tester main switch ON.
(c) Read the DTC (See page DI−462).
(d) Clear DTCs (see page DI−462).
CHECK:
(a) Check that MIL does not light up.
OK:
Standard: MIL does not light up
NG
2 Check Harness and connector (Check for short in wire harness).
NG
Check and repair harness and connector be-
tween combination meter and ECM.
DIAGNOSTICS
PREPARATION:
E4
(a)
(b)
CHECK:
(a)
OK:
W
B17418
− ENGINE (2UZ−FE)
Start inspection from step 1
Start inspection from step 3
OK Repair circuit indicated by output code
(See page DI−477).
Disconnect the E4 ECM connector.
Turn the ignition switch ON.
Check that MIL does not light up.
Standard: MIL does not light up
OK Replace ECM (See page SF−82).
DI−941