LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 1987 >> Allante F7/ME9 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Test A: Cruise Control Input Test

Test A: Cruise Control Input Test

Enter ECM diagnostics. Select ECM input EI82. See ECM INPUT TEST EI82: CRUISE CONTROL ON/OFF SWITCH  . Turn ignition on. Go to CRUISE CONTROL INPUT TEST (EI82)  .

CRUISE CONTROL INPUT TEST (EI82)

Action ECM Display For Diagnosis
Press Cruise Switch ON Button. HI (1)(2)
Press Cruise Switch OFF Button. LO (1)(3)
(1) If ECM displays are correct, go to CRUISE CONTROL INPUT TEST 
(2) If ECM displays are NOT correct, check Fuse 1, cruise ON/OFF switch, GRY (397) and BRN (250) wires for an open.
(3) If ECM displays are NOT correct, replace right switch pod.

Enter ECM diagnostics. Select ECM input test EI71. See ECM INPUT TEST EI71: VCC BRAKE SWITCH  . Turn ignition on and switch CRUISE on. Go to CRUISE CONTROL INPUT TEST (EI71)  .

CRUISE CONTROL INPUT TEST (EI71)

Action ECM Display For Diagnosis
Press Brake Pedal LO (1)
Release Brake Pedal HI (2)
If ECM Displays Are Correct, Go To CRUISE CONTROL INPUT TEST  .
(1) Adjust/replace brake switch.
(2) Check brake switch, Gray and Brown wires for an open. If the circuit is good, check the TCC brake switch circuit.

Enter ECM diagnostics. Select ECM input test EI83. See ECM INPUT TEST EI83: CRUISE CONTROL SET/COAST SWITCH  Turn ignition on and switch CRUISE on. Go to CRUISE CONTROL INPUT TEST (EI83)  .

CRUISE CONTROL INPUT TEST (EI83)

Action ECM Displays For Diagnosis
Press SET Switch HI (1)
Release SET Switch LO (2)
If ECM Displays Are Correct, Go To CRUISE CONTROL INPUT TEST  .
(1) Check the SET switch cruise slip ring, Gray, Purple, Yellow, Blue and Dark Blue wires for an open.
(2) Replace cruise control switch assembly.

Enter ECM diagnostics. Select ECM input test EI84. See ECM INPUT TEST EI84: CRUISE CONTROL RESUME/ACCEL SWITCH  . Turn ignition on and switch CRUISE on. Go to CRUISE CONTROL INPUT TEST(EI84)  .

CRUISE CONTROL INPUT TEST (EI84)

Action ECM Display For Diagnosis
Press Resume/Accelerate (R/A) Switch HI (1)
Release Resume/Accelerate (R/A) Switch LO (2)
If ECM displays are correct, go to TEST B: CRUISE CONTROL OVERRIDE TEST  .
(1) Check the Resume/Accelerate (R/A) switch, cruise slip ring and Green, Gray/Black and Gray wires for an open.
(2) Replace cruise control switch assembly. See CRUISE CONTROL INSTRUMENT PANEL SWITCH under REMOVAL & INSTALLATION. 
scientia non olet · About LEMON Manuals