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Daewoo Musso. Manual - part 261

5A-76 AUTOMATIC TRANSMISSION

Action

Check cable for open / short.

Check connection of other connectors.

Check voltage between terminal 27 and 29 of TCU,

Standard value : 0.2 - 4.7V

Check TPS.

Check cable for open / short.

Check connection of other connectors.

Check engine speed sensor.

Check resistance between terminal 8 and 24 of TCU (when the

connector is disconnected).

Standard value : 1 .9 - 0.2 k

Check cable for open / short.

Check connection of other connectors.

Check vehicle speed sensor.

Check cable for open / short.

Check connection of other connectors.

Check engine speed sensor.

Check inhibitor switch resistance between terminal 34 and 37 of

TCU(when the connector is disconnected).

- Standard value : 1st gear - 4 - 4.4 k

2nd gear - 4,8 - 2.2 k

3rd gear - 3 - 3.4 k

D gear - 4.5 - 4.g k

N gear - 6.8 - 7.2 k

R gear - 10.8 -11.2 k

P gear - 18.6 - 19 k

Check voltage between terminal 31 and 37 of TCU.

Standard value : 0-5V(P,R,N,D,L)

Check cable for open / short.

Check connection of other connectors.

Check mode switch.

Check condition between terminal 1 and 13 of TCU.

Winter mode :12V, Normal mode : Open status, Power mode : 0V

Check cable for open / short.

Check connection of other connectors.

Check voltage between terminal 32 and 38 of TCU.

Standard value : 0-5V

Check oil temperature sensor.

Check cable for open / short.

Check connection of other connectors.

Check battery condition.

Check alternator.

Possible Cause

Throttle position sensor

Engine RPM

Vehicle speed

Shift lever

W, E, P mode switch

T/M oil temperature

Battery voltage

Symptom

P1702

P1703

P1704

P4705

P1706

P1707

P1708

Self-diagnosis List

AUTOMATIC TRANSMISSION 5A-77

Action

Check cable for open / short.

Check connection of other connectors.

Check voltage between terminal 4 and 11 of TCU.

- Standard value : when the A/C compressor is ON : 12V

when the A/C compressor is OFF : 0V

Check cable for open / short,

Check connection of other connectors.

Check voltage between terminal 1 and 12 of TCU.

- Standard value : when the kick down switch is ON : 12V

when the kick down switch is OFF : 0V

Fully depress accelerator pedal for 5 seconds(ignition key is ON).

Release accelerator pedal.

Depress brake pedal and start the engine in ‘P’ position.

Depress brake pedal and idle the engine for 5 seconds in ‘D’

position.

Shift into ‘D’ position and determine fault code for throttle initial-

ization.

Complete the initialization.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 1 and 34 of TCU(when the

connector is disconnected).

Standard value : 26 - 30

Check solenoid.

Check cable for open / short.

Check connection of other connectors,

Check resistance between terminal 1 and 40 of TCU (when the

connector is disconnected).

Standard value : 26 - 30

Check solenoid.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 1 and 41 of TCU (when the

connector is disconnected).

Standard value : 26 - 30

Check solenoid.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 1 and 33 of TCU (when the

connector is disconnected),

Standard value : 26 - 30

Possible Cause

Air conditioner switch

Kick down switch

Pedal

Vehicle ID

VPS offset

Throttle position sensor

initialization

Solenoid 1

Solenoid 2

Solenoid 3

Solenoid 4

Symptom

P1710

P1712

P1713

P1714

P1715

P1716

P1733

P1734

P1735

P1736

5A-78 AUTOMATIC TRANSMISSION

Action

Check solenoid.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 36 and 44 of TCU (when the

connector is disconnected).

Standard value : 3.6 - 4.2

Check solenoid.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 1 and 39 of TCU (when the

connector is disconnected).

Standard value : 26 - 30

Check solenoid.

Check cable for open / short.

Check connection of other connectors.

Check resistance between terminal 1 and 42 of TCU (when the

connector is disconnected).

Standard value : 26 - 30

Check solenoid.

Check cable for short.

Check connection of other connectors,

Check solenoid.

Check cable for short.

Check connection of other connectors.

Check solenoid.

Check cable for short.

Check connection of other connectors.

Check solenoid.

Check cable for short.

Check connection of other connectors.

Check solenoid.

Check cable for short.

Check connection of other connectors.

Check solenoid.

Check cable for short.

Check connection of other connectors,

Check solenoid.

Check cable for short.

Check connection of other connectors.

Check solenoid.

Possible Cause

Solenoid 5

Solenoid 6

Solenoid 7

Short of solenoid 1

Short of solenoid 2

Short of solenoid 3

Short of solenoid 4

Short of solenoid 5

Short of solenoid 6

Short of solenoid 7

Symptom

P1737

P1738

P1739

P1741

P1742

P1743

P1744

P1745

P1746

P1747

AUTOMATIC TRANSMISSION 5A-79

ADJUSTMENTS

HYDRAULIC SYSTEM

The procedures detailed below should be followed in the event that the self test procedure detailed in section 6, or a
defect symptom, indicates that there is a fault in the hydraulic system.

When making adjustments to the transmission, select the appropriate procedures from the following preliminary
checks.

Conduct a transmission fluid test procedure, refer to section 7.2.

Check the manual linkage adjustment (refer to the vehicle workshop manual).

Check engine idle speed (refer to Section 7.3).

Conduct a stall test (it is outside the scope of this publication to detail this procedure)

conduct a road test (it is outside the scope of this publication to detail this procedure).

TRANSMISSION FLUID TEST PROCEDURE

Checking Transmission Fluid Level

This procedure is to be used when checking a concern with the fluid level in a vehicle. A low fluid level will result in
gearshift loss or delay if driven when the vehicle is cold.

The vehicle is first checked for transmission diagnostic messages (refer to section 6). If the vehicle has a speedo fault
it is possible for the oil level to be low.

The vehicle is to be test driven to determine if there is an abnormal delay when selecting drive or reverse, or loss of
drive. One symptom of low oil level is a momentary loss of drive when driving the vehicle around a comer. Also when
the transmission fluid level is low, a loss of drive may occur when the transmission oil temperature is low.
If there is no loss of drive when the vehicle is driven warm and a speedo fault is registered, then fluid should be added
to the transmission.

Checking, Adding Fluid and Filling

When adding or changing transmission oil use only Castrol TQ 95 automatic transmission fluid (ATF) or other approved
fluids. The use of incorrect oil will cause the performance and durability of the transmission to be severely degraded.
Do not underfill the transmission. Incorrect tilling may cause damage to the transmission. The fluid level setting
procedure is detailed below.

Notice

When a transmission is at operating temperature hot transmission fluid may come out of the case if the fill plug is
removed. 9 the transmission is at operating temperature allow two hours for cooling prior to removing the plug.

1. If the vehicle is at operating temperature allow the vehicle to cool down for two, but no greater than four hours

before adding transmission fluid (this will allow the transmission to be within the correct temperature
range).

While hot the ATF level is higher and removing the plug may result in oil being expelled from the filler hole. This
will result in the level being low.

2. The transmission selector is to be in Park.

Switch the engine off.

3. Raise the vehicle on a hoist (or leave over a service pit).

4. Clean all dirt from around the service fill plug prior to removing the plug. Remove the oil service fill plug.

Clean the fill plug and check that there is no damage to the ‘O’ ring.

Install the filler pump into the filler hole.

5. Lower the vehicle with the filler pump still connected and partially fill the transmission.

Start the vehicle in Park with the Parking brake and foot brake applied with the engine idling, cycle the transmission
gear selector through all positions, adding ATF until gear application is felt.

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