Toyota Tundra 2005 Service - Repair - Maintenance page 891

DI−618
7 Check for open and short in harness and connector between ignition coil and
ECM.
Wire Harness Side:
Ignition Coil Connector
I3 I4
I6
I5
I7 I8
I9
I10
ECM Connector
E7
IGF2
IGF1
DIAGNOSTICS − ENGINE (2UZ−FE)
Check the harness and connector between the ignition coil
and the ECM (IGF terminal) connectors:
PREPARATION:
(a) Disconnect the I3, I4, I5, I6, I7, I8, I9 or I10 ignition coil
connector.
(b) Disconnect the E7 ECM connector.
CHECK:
Check the resistance between the wire harness side connec-
tors.
A21025
OK:
Standard:
Tester Connection
Ignition coil (I3−2) − IGF1 (E7−24)
Ignition coil (I4−2) − IGF2 (E7−25)
Ignition coil (I5−2) − IGF1 (E7−24)
Ignition coil (I6−2) − IGF2 (E7−25)
Ignition coil (I7−2) − IGF1 (E7−24)
Ignition coil (I8−2) − IGF2 (E7−25)
B17412
Ignition coil (I9−2) − IGF1 (E7−24)
Ignition coil (I10−2) − IGF2 (E7−25)
Ignition coil (I3−2) or IGF1 (E7−24) −
Body ground
Ignition coil (I4−2) or IGF2 (E7−25) −
Body ground
Ignition coil (I5−2) or IGF1 (E7−24) −
Body ground
Ignition coil (I6−2) or IGF2 (E7−25) −
Body ground
Ignition coil (I7−2) or IGF1 (E7−24) −
Body ground
Ignition coil (I8−2) or IGF2 (E7−25) −
Body ground
Ignition coil (I9−2) or IGF1 (E7−24) −
Body ground
Ignition coil (I10−2) or IGF2 (E7−25) −
Body ground
Specified Condition
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher
10 kΩ or higher