Toyota Celica Supra 1986 Service And Repair Manual page 630

""
BE-82
BODY
ELECTRICAL SYSTEM - Cruise Control System
Cruise Control Computer Circuit
INSPECTION OF COMPUTER CIRCUIT
Disconnect the computer and inspect
the
connector on the
wire harness side as shown in the chart below.
Termtnal
Connecdon or
Chedt Item Tester Connection Condition
Voltage or
Measure Item
Resirt.lnctVIIul
1
Stop
Light
Switch and
Re$iJtance
1 -2
Brake pedal returned
About68
n
Release Valve
2
Release Valve and
Control Valve
-
-
-
-
3
Control Valve
Resistance
3 - 2
-
About
JOn
I ! .
Cont rol Switch Continuity 4 - Body Ground Turn set/coast switch on Continuity
4
(Set/Coast)
Turn set/ooast switch off
No continuity
&
00 Relay
-
-
-
-
6
Speed Sen.sor
-
-
-
-
Main Switch
Voltage
7 - Body Ground
Turn ignition switch and main
Battery voltage
switch on
7
Turn ignition switch and main
switch off
No voltage
8
Stop Light Switch Voltage
8 - Body Ground Brake pedal depressed
Battery volt•
Brake ped11 returned No voltage
9 STOP Fuse
Voltage
9 - Body Ground
-
Battery volttge
10
8ody Ground
Continuity 10 - Body Ground
-
Continuity
Clutch Switch
Continuity
11 - Body Ground
Clutch pedal depre-ssed or shift
Continvity
Neutral Switch
into "N" range
11
Clutch pedal returned
or
shift
No continuity
into except "N" range
12
Parking Brake Switch Voltage 12 - Body Ground Parking btake pulled No voltage
Parking brake returned Battery voltage
13
Control Switch Continuity 13
- Body Ground Turn aceel/resume switch on Continuity
(Accei/Resume•
Turn accel/resume switch off No continuity
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