Honda TRX500FPM - DTC 42-1 (Gearshift Switch Circuit)

ELECTRIC SHIFT PROGRAM (ESP : FE/FPE mod els)
DTC 42 -1 (GEARSHIFT SWITCH
CIRCUIT)
NOTE
Before starting the troubleshooting , check for l oose or
poor contact of the following connectors , and recheck
the
DTC (page 23-14).
- handlebar switch 1 4P (Green)
-
PCM SP (Black)
1. Gearshift Switch Inspection
Check the gearshift switch status with Ihe HOS data
list menu.
UP
-- DOW N!
I
~
"Up" ON 3.64 - 4.08 V
1. 76 - 2.09 V
---
" Down " ON
1. 76 - 2.09 V
3.64 -4.08 V
4.0 - 4.99 1
,
Both ON ' 4.0 4.99 V
Both OFF
I O_D . 99V
O-O . g9V
Is the gearshift switch status normal?
YES - Intermittent failure
NO - GO TO STEP 2.
2.
Gearshift Switch I nspection at Handlebar Switch
Connector
Turn the ignition switch OFF .
Disconnect Ihe handlebar switch 14P (Green)
connector [1].
Check for continuity between the handlebar switch
side
14P (Green) connector terminals while pushing
the gearshift switch.
Connect i on :
With the upshift switch pushed :
White /red - White / blue
With the downshift switch pushed :
White /red - White / yellow
Is there continuity ?
YES - GO TO STEP 3.
NO - Faulty handlebar switch .
3. Gearshift Switch I nspection at PCM Connector
Connect the handlebar switch 14P (Green)
conneclor and disconnect the PCM 33P (Black)
connector [11.
Check for continuity between the wire harness side
PCM 33P (Black) connector terminals while pushing
the
gearshift switch.
TOOL :
Test probe
07ZAJ-ROJA110
Connection :
With the upshift switch pushed:
A3 (White/red) - A6 (White/blue)
With the downshift switch pushed :
A3 (White/red) -
AS (White/ yellow)
/s there con t inui t y?
YES - GO TO STEP 4.
NO - Open circuit in the Whitelred, White/blue or
White/yellow wire between the sWitch and
PCM.
Whltelblue
Whi te/yellow
White/
red
111
111
A5
Q
A6
A3
23-25