• If any DTCs are displayed, carry out troubleshooting according to the corresponding DTC
inspection.
3. Disconnect the WDS or equivalent.
DTC TABLE (IMMOBILIZER SYSTEM)
DTC
WDS or equivalent
display
*
Security light flashing pattern
Keyless
control
module
PCM
Detection condition Page
11
B1681 P1260
No detected communication with
the coil
SECURITY LIGHT:
11, DTC B1681/P1260
12
B2103 P1260 Coil malfunction
SECURITY LIGHT:
12, DTC B2103/P1260
B1600 P1260
The key ID number data cannot
be read.
SECURITY LIGHT:
13, DTC B1600/P1260
13
B2431 P1260 Key ID number registration error
SECURITY LIGHT:
13, DTC B2431/P1260
14
B1602 P1260
The keyless control module
cannot read key ID number data
normally.
SECURITY LIGHT:
14, DTC B1602/P1260
15
B1601 P1260
The keyless control module has
detected unregistered key ID
number.
SECURITY LIGHT:
15, DTC B1601/P1260
U2510 P1260
Communication error between
the keyless control module and
the PCM (no response)
16
U1147 P1260
Communication error between
the keyless control module and
the PCM (mismatched conditions)
SECURITY LIGHT:
16, DTC U2510/P1260,
U1147/P1260
21
B1213 P1260
Only one key ID number is
registered.
SECURITY LIGHT:
21, DTC B1213/P1260