TROUBLE DIAGNOSES — Contents

AT-11index toc

Automatic Transmission (A/T) section. Applicable to 1989 Nissan 200SX S13 with CA18DET engine.

Topic	Page
How to Perform Trouble Diagnoses for Quick and Accurate Repair	AT-13
Preliminary Check	AT-14
A/T Electrical Parts Location	AT-25
Circuit Diagram for Quick Pinpoint Check	AT-27
Wiring Diagram	AT-28
Self-diagnosis	AT-30
SELF-DIAGNOSTIC PROCEDURE	AT-30
JUDGEMENT OF SELF-DIAGNOSIS CODE	AT-32
REVOLUTION SENSOR CIRCUIT CHECK	AT-36
SPEED SENSOR CIRCUIT CHECK	AT-36
THROTTLE SENSOR CIRCUIT CHECK	AT-37
SHIFT SOLENOID A CIRCUIT CHECK	AT-38
SHIFT SOLENOID B CIRCUIT CHECK	AT-39
OVERRUN CLUTCH CIRCUIT CHECK	AT-40
LOCK-UP SOLENOID CIRCUIT CHECK	AT-41
FLUID TEMPERATURE SENSOR CIRCUIT AND A/T CONTROL UNIT POWER SOURCE CIRCUIT CHECKS	AT-42
ENGINE REVOLUTION SIGNAL CIRCUIT CHECK	AT-43
LINE PRESSURE SOLENOID CIRCUIT CHECK	AT-44
INHIBITOR, OVERDRIVE, KICKDOWN AND IDLE SWITCH CIRCUIT CHECKS	AT-45
Diagnostic Procedure 1 (SYMPTOM: O.D. OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to "ON".)	AT-47
Diagnostic Procedure 2 (SYMPTOM: Engine cannot be started with selector lever in "P" or "N" range or engine can be started with selector lever in "D", "2", "1" or "R" range.)	AT-48
Diagnostic Procedure 3 (SYMPTOM: Vehicle moves when it is pushed forward or backward with selector lever in "P" range.)	AT-48
Diagnostic Procedure 4 (SYMPTOM: Vehicle moves forward when setting "N" range.)	AT-49
Diagnostic Procedure 5 (SYMPTOM: There is large shock when changing from "N" to "R" range.)	AT-50
Diagnostic Procedure 6 (SYMPTOM: vehicle does not creep backward when selecting "R" range.)	AT-51
Diagnostic Procedure 7 (SYMPTOM: Vehicle does not creep forward when selecting "D", "2" and "1" range.)	AT-52
Diagnostic Procedure 8 (SYMPTOM: Vehicle cannot be started from D1 on Cruise test—Part 1.)	AT-53
Diagnostic Procedure 9 (SYMPTOM: A/T does not shift from D1 to D2 at specified speed. A/T does not shift from D4 to D2 when depressing accelerator pedal fully at the specified speed.)	AT-54
Diagnostic Procedure 10 (SYMPTOM: A/T does not shift from D2 to D3 at the specified speed.)	AT-55
Diagnostic Procedure 11 (SYMPTOM: A/T does not shift from D3 to D4 at the specified speed.)	AT-56
Diagnostic Procedure 12 (SYMPTOM: A/T does not perform lock-up at the specified speed.)	AT-57
Diagnostic Procedure 13 (SYMPTOM: A/T does not hold lock-up condition for more than 30 seconds.)	AT-58
Diagnostic Procedure 14 (SYMPTOM: Lock-up is not released when accelerator pedal is released.)	AT-58

How to Perform Trouble Diagnoses for Quick and Accurate Repair

PageAT-13

Preliminary Check

PageAT-14

A/T Electrical Parts Location

PageAT-25

Circuit Diagram for Quick Pinpoint Check

PageAT-27

Wiring Diagram

PageAT-28

Self-diagnosis

PageAT-30

SELF-DIAGNOSTIC PROCEDURE

PageAT-30

JUDGEMENT OF SELF-DIAGNOSIS CODE

PageAT-32

REVOLUTION SENSOR CIRCUIT CHECK

PageAT-36

SPEED SENSOR CIRCUIT CHECK

PageAT-36

THROTTLE SENSOR CIRCUIT CHECK

PageAT-37

SHIFT SOLENOID A CIRCUIT CHECK

PageAT-38

SHIFT SOLENOID B CIRCUIT CHECK

PageAT-39

OVERRUN CLUTCH CIRCUIT CHECK

PageAT-40

LOCK-UP SOLENOID CIRCUIT CHECK

PageAT-41

FLUID TEMPERATURE SENSOR CIRCUIT AND A/T CONTROL UNIT POWER SOURCE CIRCUIT CHECKS

PageAT-42

ENGINE REVOLUTION SIGNAL CIRCUIT CHECK

PageAT-43

LINE PRESSURE SOLENOID CIRCUIT CHECK

PageAT-44

INHIBITOR, OVERDRIVE, KICKDOWN AND IDLE SWITCH CIRCUIT CHECKS

PageAT-45

Diagnostic Procedure 1 (SYMPTOM: O.D. OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to "ON".)

PageAT-47

Diagnostic Procedure 2 (SYMPTOM: Engine cannot be started with selector lever in "P" or "N" range or engine can be started with selector lever in "D", "2", "1" or "R" range.)

PageAT-48

Diagnostic Procedure 3 (SYMPTOM: Vehicle moves when it is pushed forward or backward with selector lever in "P" range.)

PageAT-48

Diagnostic Procedure 4 (SYMPTOM: Vehicle moves forward when setting "N" range.)

PageAT-49

Diagnostic Procedure 5 (SYMPTOM: There is large shock when changing from "N" to "R" range.)

PageAT-50

Diagnostic Procedure 6 (SYMPTOM: vehicle does not creep backward when selecting "R" range.)

PageAT-51

Diagnostic Procedure 7 (SYMPTOM: Vehicle does not creep forward when selecting "D", "2" and "1" range.)

PageAT-52

Diagnostic Procedure 8 (SYMPTOM: Vehicle cannot be started from D1 on Cruise test—Part 1.)

PageAT-53

Diagnostic Procedure 9 (SYMPTOM: A/T does not shift from D1 to D2 at specified speed. A/T does not shift from D4 to D2 when depressing accelerator pedal fully at the specified speed.)

PageAT-54

Diagnostic Procedure 10 (SYMPTOM: A/T does not shift from D2 to D3 at the specified speed.)

PageAT-55

Diagnostic Procedure 11 (SYMPTOM: A/T does not shift from D3 to D4 at the specified speed.)

PageAT-56

Diagnostic Procedure 12 (SYMPTOM: A/T does not perform lock-up at the specified speed.)

PageAT-57

Diagnostic Procedure 13 (SYMPTOM: A/T does not hold lock-up condition for more than 30 seconds.)

PageAT-58

Diagnostic Procedure 14 (SYMPTOM: Lock-up is not released when accelerator pedal is released.)

PageAT-58

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