Esp Dtc Index - Honda TRX500FM Service Manual

ELECTRIC SHIFT PROGRAM (ESP: FE/FPE models)
ESP DTe INDEX
NOTE
When the gear position indicator" -" is blinking constanlly (and the
Mil
and coolant temperature indicator lights are dark). but no
DTG
is
indicated or retrievable, check the serial communication line (page 22-7).
There are some OTCs (21-1 Ihru 23-1) related to the shift angle sensor circuit that have different conditions of malfunction
detection. In case of the low voltage (about 0 V) or high voltage (about 5 V) in the shift angle sensor circuil, DIG 22-2 will be
Indicated when the control motor does not operate.
Ole
("-" blinks)
8-' (8)
8-2 (8)
11·1 (11 )
21·1 (21)
Function Failure
TP sensor circuit low voltage (less than 0.22 V)
• TP sensor or its circuit malfunction
Symptom/Fail-safe function
--'---:--'Poor engine acceleration
Fail·safe value:
ESP does not work
TP sensor circuil High voltage (more than 4.93 V) Poor engine acceleration
• Loose or poor contact of the TP sensor connector Fail-safe value: O·
• TP sensor or its circuil malfunction _ __ _ _ t--:-,;ESP does not work
r
VS sensor no Signal Engine operates normally
• loose or poor contact of the Rear VS sensor ESP does not work
connector
• Rear VS sensor or its circuit malfunction
Shift angle sensor circuit low vol tage (less than T ESP does not work
0.37 V)
• Shift angle sensor or its circuit malfunction
- -- - -- Shift angle sensor circuit High voltage (more than 4.62 V)
• ESP does not work
21.2 (21) • loose or poor contact of the Sub-gearshift spindle
---h
angle sensor connector
• Shift angle sensor or its circuil malfunction
_cc-----:-,
- - - - - Shift angle sensor response (Control motor lock) • ESP does not work
PCM activates the motor but the angle sensor voltage
22-1 (22)
does not change in middle position
Control motor or its circui t malfunction
Refer
to
4·18
4·19
t
23-14
23-15
23-17
23-18
Shift angle sensor or its circui t _ _
-r_ ;;;;;. ____ -+_
angle sensor response (Control motor stuck) • ESP does not work
22·2 (22)
PCM does not activate the motor but angle sensor
voltage stays out of middle position (195 - 3.05 V)
• Control motor or its circuit malfunction
• Shift angle sensor or its cirCUit malfunction
Shift angle sensor response (VOltage variation)
• PCM does not activate the motor but angle sensor
- ESP does not work
voltage varies constantly
• Shift angle sensor installation problem
23·1 (23)
:-+
.
Shift angle sensor or its circuit malfunction
• Control motor or its circuit malfunction
Shift control motor drive circuit
24-1 (24) • Control motor or its circuit malfunction
+ E SP does not wo,k
• Control motor drive circuit malfunction
Fail·safe relay circuit
• Fail·safe relay circuit malfunction
32-' (32)
ESP does not work
EEPROM malfunction _ _ _ __ _
--j_,-
Engine operates normally
Gear posiliOn switch circuit Engine does not start
33-2 ( )
41 ·1 (41) • Gear position switch cirCUit malfunction (Short) ESP does not work
23-18
I 23-'9
j
t
23-20
23-21
4-25
23·22
_ __ _ --!_ :-iGear position indicator bhnks " -- "- _ "--! _ _ _
--1
Gear position switch circuit ESP does not work
• Gear position switch circuit malfunction _ _ indicator blinks "-"
Gearshift (UP/DOWN) switch circuil ESP does not work
41·2 (41)
23-23
42·1 (42) Gearshift (UP/DOWN) switch circuit malfunction
23-25
_ _ _ - '("'5 .... hort) _ __ _ _ _
23-13