Suzuki 2000 Grand Vitara SQ625 Service Manual page 122

FRAME
MAL-
FUNCTION
DETECTED ORDER
No malfunction
1 P0112 (IAT) detected
P0171 (Fuel system)
2
detected
P0300 (Misfire)
3
detected
P0301 (Misfire)
4
detected
Serial data line
(K line of ISO 9141)
In the 2nd through the 4th frames, the freeze frame data of each
malfunction is stored in the order as the malfunction is detected.
These data are not updated regardless of the priority.
Shown in the table below are examples of how freeze frame data
are stored when two or more malfunctions are detected.
FRAME 1
FREEZE FRAME
DATA to be updated
No freeze frame data
Data at P0112
detection
Data at P0171
detection
Data at P0171
detection
Data at P0171
detection
Freeze frame data clearance:
The freeze frame data is cleared at the same time as clearance of
DTC.
Data Link Connector (DLC)
SUZUKI
DLC (1) is in compliance with SAEJ1962 in its installation position,
Serial data
line
the shape of connector and pin assignment.
Serial data line (K line of ISO 9141) is used for SUZUKI scan tool
(Tech-1) or generic scan tool to communicate with ECM (PCM) and
ABS control module. SUZUKI serial data line is used for SUZUKI
Body ground
ECM ground
scan tool (Tech-1) to communicate with an electronic control unit
(Airbag SDM, etc.).
FRAME 2
1st FREEZE FRAME 2nd FREEZE FRAME
DATA
No freeze frame No freeze frame
data data
Data at P0112 No freeze frame
detection data
Data at P0112 Data at P0171
detection detection
Data at P0112 Data at P0171
detection detection
Data at P0112 Data at P0171
detection detection
ENGINE (H25 ENGINE) 6-1-11
FRAME 3 FRAME 4
3rd FREEZE FRAME
DATA
No freeze frame
data
No freeze frame
data
No freeze frame
data
Data at P0300
detection
Data at P0300
detection
DATA