TOHATSU BFT250A Service Manual page 129

dummyhead dummyhead
READING DTC WITH THE HDS
• The HDS can readout the DTC, freeze data, current
data, and other ECM condition.
How to connect the HDS
Turn the combination switch to OFF.
Remove the dummy connector [1] from the DLC [2].
Connect the HDS [3] to the DLC.
Turn the combination switch ON and check the DTC
and freeze data.
• Freeze data indicates the engine conditions when
the first malfunction was detected.
Read the DTC and freeze data and follow the
troubleshooting index (page 5-15).
After troubleshooting, perform repairs as needed and
perform
TROUBLESHOOTING)" (page 5-8).
READING DTC WITH THE MIL
Turn the combination switch to OFF.
Remove the dummy connector [1] and short DLC
terminals [2] using the special tool.
TOOL:
SCS service connector [3]
Turn the combination switch ON, read, note the MIL
blinks and refer to the troubleshooting index (page 5-
45).
• If the ECM has any DTC in its memory, the MIL will
start blinking.
• The MIL has two types of blinks, a long blink and
short blink. One long blink is the equivalent of 10
short blinks. For example, when 1 long blink is
followed by 4 short blinks, the MIL is 14 (1 long
blinks = 10 blinks, plus 4 short blinks).
• When multiple problems occur simultaneously, the
MIL repeatedly indicates them by blinking separate
codes, one after another.
After troubleshooting, perform repairs as needed and
perform
TROUBLESHOOTING)" (page 5-8).
the "FINAL PROCEDURE
070PZ-ZY30100
the "FINAL PROCEDURE
[1] [2]
[3]
(AFTER
[3]
MIL CODES:
Single problem:
(AFTER
Multiple problems:
FUEL SYSTEM
[1] [2]
See DTC 1
See DTC 3
See DTC 14
See DTC 1 and 3
See DTC 3 and 4
See DTC 1 and 14
5-7