Delorean DMC - Diagnosis

TRANSMISSION DIAGNOSIS
DIAGNOSIS PROCEDURE
1. Road test the vehicle and determine all
irregularities.
Notice:
It is important to gain as much information as
possible on the precise nature of any fault.
Whenever possible, perform a complete diagnosis
procedure an identify all symptoms.
2. Check and adjust transmission fluid level (see
MAINTENANCE AND ADJUSTMENT section
for proper level).
3. Check the condition of the transmission
electrical system.
a. Transmission fuse.
b. Wiring connections on the governor
computer wiring harness.
c. Cut, broken or heat damaged wiring
harnesses on the governor computer.
d. Improper charging system voltage (vehicle
alternator).
4. Check and adjust the gear shift selector linkage
(see MAINTENANCE AND ADJUSTMENT
section).
5. Check and adjust the governor control cable
(see MAINTENANCE AND ADJUSTMENT
section).
6. Check vacuum modulator connections and
perform fluid pressure check and adjustment
(see MAINTENANCE AND ADJUSTMENT
section).
7. Inspect the transmission fluid for evidence of
gear fluid contamination, burning or metallic
particles.
8. Check the microswitch for proper operation;
including inspection of the wiring for grounds
and electrical continuity with a test light.
9. Evaluate the results of the previous checks and
adjustments. Refer to the DIAGNOSIS CHART
No. 1 and No. 2 Figs. 6 and 7 and the
COMPONENT APPLICATION CHART Fig. 5
for final diagnosis of problem.
SELECTOR
POSITION
PARK
REVERSE
NEUTRAL
DRIVE
2
1
GEAR
FIRST
SECOND
THIRD
FIRST
SECOND
FIRST
CI
CLUTCH
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
C2
CLUTCH
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
B2
BRAKE
OFF
OFF
OFF
ON
ON
OFF
ON
ON
ON
B1
BRAKE
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ROLLER CLUTCH
INEFFECTIVE
INEFFECTIVE
INEFFECTIVE
EFFECTIVE
INEFFECTIVE
INEFFECTIVE
EFFECTIVE
INEFFECTIVE
INEFFECTIVE
SOLENOID
BALL VALVES
EL1
ON
ON
ON
ON
OFF
OFF
ON
OFF
' *ON
EL2
ON
ON
ON
ON
ON
OFF
ON
ON
ON
•BELOW 22 MPH (35 Km/h) ON LIGHT THROTTLE
(
Fig. 5
COMPONENT APPLICATION CHART