Toyota Camry Manual page 1226

DLC3
Terminal No.
7
4 Chassis Ground
5 Signal Ground
16 Battery Positive
DIAGNOSTICS
(b)
N09214
Connection / Voltage or Resistance
Bus Line / Pulse generation
Body Ground /1 Ω or less
Body Ground /1 Ω or less
Body Ground /9 ∼ 14 V
HINT:
If your display shows "UNABLE TO CONNECT TO VEHICLE"
when you have connected the cable of the OBD II scan tool or
TOYOTA hand–held tester to DLC3, turned the ignition switch
ON and operated the scan tool, there is a problem on the ve-
hicle side or tool side.
D
D
2.
(a)
HINT:
If the MIL does not light up, troubleshoot the combination meter
(See page BE–46).
S04159
(b)
NOTICE:
TOYOTA hand–held tester only: When the diagnosis sys-
tem is switched from normal mode to check mode, it erases
all DTC and freezed frame data recorded in normal mode.
So before switching modes, always check the DTC and
freezed frame data, and note them down.
– ENGINE (1MZ–FE)
Check the DLC3.
The vehicle's ECM uses ISO 9141–2 for communication.
The terminal arrangement of DLC3 complies with SAE
J1962 and matches the ISO 9141–2 format.
If communication is normal when the tool is connected to
another vehicle, inspect DLC3 on the original vehicle.
If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.
INSPECT DIAGNOSIS (Normal Mode)
Check the MIL.
(1) The MIL comes on when the ignition switch is turned
ON and the engine is not running.
(2) When the engine started, the MIL should go off. If
the lamp remains on, the diagnosis system has de-
tected a malfunction or abnormality in the system.
Check the DTC.
(1) Prepare the OBD II scan tool (complying with SAE
J1978) or TOYOTA hand–held tester.
Author :
Condition
During transmission
Always
Always
Always
Date :
DI–199
434