The Diagnostic Connector
Pin Name (see above)
Pin Name
Function
A
FEN
Trouble code output (engine control computer)
B
MEN
Switch monitor output (engine control computer)
C
TEN
Diagnostic-mode input (engine control computer)
D
+B
Switched battery voltage
E
GND
Ground
F
FAT
Trouble code output (automatic transmission control computer)
G
FBS
Trouble code output (anti-lock brakes (ABS) control computer)
H
FAC
Trouble code output (air conditioning (A/C))
J
FWS
Trouble code output (Four wheel steering (4WS))
K
FSC
Trouble code output (cruise (speed) control computer)
L
-
Not used
M
TAT
Diagnostic-mode input (automatic transmission control computer)
N
TBS
Diagnostic-mode input (anti-lock brakes (ABS) control computer)
P
TAC
Diagnostic-mode input (air conditioning (A/C))
Q
TWS
Diagnostic-mode input (Four wheel steering (4WS))
R
TSC
Diagnostic-mode input (cruise (speed) control computer)
S
T
FAB
Trouble code output (air-bag diagnostic monitor computer)
U
IG-
Igniter coil output (for connection to external tachometer)
V
W
TFA
Diagnostic-mode input (Special use only)
X
F/P
Fuel pump relay coil (ground to activate fuel pump)
Y
TAB
Horn relay
Z
3
Malfunction codes can be retrieved from the engine, ABS, automatic transmission, Cruise Control, 4WS and air-bag computers by reading the codes flashed by the LED.
Engine Malfunction Codes
Engine codes can be read by connecting the TEN and GND pins, using the jumper wire. (See above for the location of this pin) and The LED connected to B+ and FEN pins. The codes are read by counting the number of flashes given out from the LED. The RED lead goes to the B+ pin
BE CAREFUL CONNECTING THE B+ PIN... this is a live 30A feed
The first series of long flashes (1.2 Secs) are the tens position. There is a short pause (1.6 Secs) and then the second series of quick flashes (0.4 Secs) begins which are the digits. The codes are repeated indefinitely.
Example: ------ ------ (2) -- -- -- (3) is 23 – RH 02 Sensor
A summary of the codes and the reasons:
Code
Affected System or Component
FE
KL
02
NE1 (crankshaft position sensor)
NE2 (crankshaft position sensor 2)
03
G (crankshaft position sensor)
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