TOHATSU BFT115A Service Manual page 125

READING DTC WITH THE HDS
• The HDS can readout the DTC, freeze data, current
data, and other ECM conditions.
Turn the combination switch 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 the "FINAL
TROUBLESHOOTING)" (page 5-8).
READING DTC WITH THE MIL
Turn the combination switch OFF.
Remove the dummy connector (1) from the DLC (2) and
short the DLC terminals using the special tool.
TOOL:
SCS service check connector (3) 070PZ-ZY30100
Turn the combination switch ON; read and note the MIL
blinks and refer to the troubleshooting index (page 5-
53).
• 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 a
short blink. One long blink is the equivalent of ten
short blinks. For example, when two long blinks are
followed by five short blinks, the MIL is 25 (two long
blinks = 20 blinks, plus five 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 the "FINAL
TROUBLESHOOTING)" (page 5-8).
PROCEDURE (AFTER
PROCEDURE (AFTER
With Dr. H shown:
(2)
(2)
Single problem:
See DTC 3
See DTC 14
Multiple problems:
FUEL SYSTEM
(1)
(3)
(1)
(3)
See DTC 3 and 4
See DTC 3 and 14
5-7