|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
|
02
|
TPS SIGNAL
|
Ignition On
Throttle valve Closed
(accelerator pedal in idle position)
Throttle valve completely Open
(accelerator pedal fully depressed)
|
0.1 to 0.9 V
3.9 to 4.9 V
|
21, 22
|
34, 26, 19
|
|
|
Note: Throttle valve potentiometer P34 is used to
determine the position and motion of the throttle valve.
TECH 1 checks the signal voltage at Ter. 26
of the control unit.
|
|
Notes on Trouble - shooting:
|
Nominal Value:
|
Cause of Fault:
|
|
|
· Ignition
On. Disconnect plug from throttle valve potentiometer
|
greater than 4.9 V
|
· Short
circuit between signal lead Ter. 3 and ground
· Short
circuit to ground in lead from control unit Ter. 26 to throttle valve
potentiometer Ter. 3
· Control
unit defective
|
|
|
· Bridge
Ter. 3 with Ter. 1 in throttle valve potentiometer plug using adapter
lead from KM - 609
|
0... 0.1 V
|
· Lead
interruption from
- control unit Ter.
26 to throttle valve potentiometer Ter. 3
- throttle valve
potentiometer plug Ter. 1 to ground
· Control
unit defective
|
|
|
· Using
multimeter, measure voltage between Ter. 2 and Ter. 1 in throttle valve
potentiometer plug
Nominal values are attained
|
greater than 4.9 V
|
· Lead
interruption or short circuit to ground from control unit Ter. 34 to throttle
valve potentiometer plug Ter. 2
· Throttle
valve potentiometer defective
|
|
|
|
|
|
|
|
|
|
|
