Cruise Control - Updated Diagnostic Procedures
91mitsubishi03
NO. TSB-91-13-002
DATE February, 1991
MODEL 1989-90 Galant, 1990 Eclipse,
Montero, Mirage,
Truck, Van/Wagon
TSB Revision TSB-91-13-002
SUBJECT:
AUTO-CRUISE CONTROL INPUT CHECKING - SERVICE MANUAL SUPPLEMENT
PURPOSE
This bulletin provides revised auto-cruise control diagnostic procedures which should be used instead of the "INPUT CHECKING" procedures specified in the affected service manuals.
Shown on page 2 of this bulletin are the Input Checking procedures for: 1990 Eclipse, 1989-1990 Galant, and 1990 Mirage.
Shown on page 3 of this bulletin are the Input Checking procedures for: 1990 Montero, 1990 Truck, and 1990 Van/Wagon.
As reference to this TSB, please write this TSB number in the TSB Revision boxes on the affected service manual pages.
SERVICE MANUALS AFFECTED
1989-1990 Galant, Page 13-222
1990 Eclipse (with AWD), Page 13-197
1990 Mirage, Page 13-205
1990 Montero, Page 13-183
1990 Truck, Page 13-179
1990 Van/Wagon, Page 13-111
Please write on the affected service manual pages "REFER TO TSB-91-13-002".
AUTO-CRUISE CONTROL INPUT CHECKING PROCEDURES
1990 Eclipse
1989 - 1990 Galant
1990 Mirage
INPUT CHECKING
Input checks should be made when the auto-cruise control system cannot be set and when it is necessary to determine if the input signals are normal. Input checks are required when a malfunction related to the auto-cruise control system occurs. There are two ways to perform input checks: with the Multi-Use Tester or with a Voltmeter.
NOTE: Display codes are displayed only if the circuit is normal according to the conditions shown in the input check table shown in the appropriate Service Manual. Configuring the Multi-Use Tester is the same as for the self-diagnosis check.
- WITH MULTI-USE TESTER
(1) Turn the ignition switch ON, and switch OFF the cruise control main switch.
(2) Select the cruise control system from the multi-use tester's menu.
(3) With the cruise control SET switch in the ON position, turn the cruise control MAIN switch ON. Then, within one second, move the cruise control RESUME switch into the ON position.
(4) Read the self-diagnosis code from the multi-use tester's menu.
(5) Perform each input operation according to the input check table in the appropriate service manual and read the codes.
- WITH VOLTMETER
(1) The voltmeter is set in the same way as for the self-diagnosis check. Refer to the appropriate service manual for specific voltmeter connection locations.
(2) Turn the ignition switch to ON and switch OFF the cruise control main switch.
(3) With the cruise control SET switch in the ON position, turn the cruise control MAIN switch ON. Then, within one second, move the cruise control RESUME switch into the ON position.
(4) Perform each input operation according to the input check table in the appropriate service manual and read the codes.
1990 Montero
1990 Truck
1990 Van/Wagon
INPUT CHECKING
Input checks should be made when the auto-cruise control system cannot be set and when it is necessary to determine if the input signals are normal. There are two ways to perform input checks: with the Multi-Use Tester or with a Voltmeter. Input checks are required when a malfunction related to the auto-cruise control system occurs.
NOTE: Display codes are displayed only if the circuit is normal according to the conditions shown in the input check table shown in the appropriate Service Manual. Configuring the Multi-Use Tester is the same as for the self-diagnosis check. The voltmeter is set in the same way as for the self-diagnosis check.
- INPUT TESTING
(1) Turn the ignition key to ON. (Check No. 1 through No. 3 of the input check table, shown in the appropriate service manual.)
(2) Start the engine. (Again check No. 1 through No. 3 of the input check table, shown in the appropriate service manual.)
(3) Code Display
1. Switch the cruise control main swftch OFF.
2. With the cruise control SET switch in the ON position, turn the cruise control MAIN switch ON. Then, within one second, move the cruise control RESUME switch into the ON position.
3. Perform each input operation according to the input check table in the appropriate service manual and read the codes.