Opel Frontera UE. Manual - part 1326

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–44

Step

Action

Yes

No

1

1. Connect TECH 2.

While running in TOD mode, does TECH–2’s rear speed sensor
indication change with vehicle speed?

Go to 

Step 2

Repair and

inspection front

speed sensor

tone wheel.

Go to 

Step 6

2

1. Clear the trouble code.

While running at 40 km/h or 25 mph in TOD mode for 30
consecutive sec, is the trouble code reissued?

Go to 

Step 3

The trouble is not

reproduced.

Refer to

“Troubles

intermittently

observed”.

3

1. Turn off the starter switch.
2. Disconnect the ECU connector (C–59) and (C–60).

Is there the continuity between the connector (C–60) terminal 23
and 25?

Repair the circuit.

Go to 

Step 5

Go to 

Step 4

4

1. Disconnect the transfer connector (A–1).

Is there the continuity between the connector (C–60) terminal 23
and the connector (A–1) terminal 5, the connector (C–59) terminal
12 and connector (A–1) terminal 1, and the connector (C–59)
terminal 13 and connector (A–1) terminal 9?

Replace the rear

speed sensor.

Go to 

Step 5

Repair the circuit.

Go to 

Step 5

5

1. Clear the trouble code.

While running at 40 km/h or 25 mph in TOD mode for 30
consecutive sec, is the trouble code reissued?

Replace EUC.

Go to 

Step 6

Go to 

Step 6

6

1. Check that all the parts are mounted.
2. Clear the trouble code.

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to 

Step 6

SECTION

4B2–45

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

6

13

 The reference is short-circuited to

GND

Reference 

]

 5 V

P1735

GND.

15

The reference is short-circuited to

VB

P1736

VB.

If the reference wire (12) is short-circuited to GND, the
speed signal is not generated. If the wire is short-circuited
to the battery voltage, the signal level becomes faulty.

D04R100007

SECTION

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–46

Step

Action

Yes

No

1

1. Start the engine.

Does the voltage between terminals 12 and 47 meet the standard
5V?

Refer to 

“Trouble

intermittently

observed”.

Go to 

Step 2

2

Is the voltage below the standard?

Go to 

Step 3

Go to 

Step 7

3

1. Turn off the starter switch.
2. Disconnect the ECU connector.

Is the continuity established between vehicle harness terminals
(C–59)12 and (C–60)25?

Go to 

Step 4

The ECU is

failed. Replace

the ECU.

Go to 

Step 8

4

1. Disconnect the H-38 connector.

Is the continuity established between floor harness connector
terminals (H-38)2 and (H-38)15?

Go to 

Step 5

Short to GND

between

(C–59)12 and

(H–38)2.

Repair the circuit.

Go to 

Step 8

5

1. Disconnect the A-1 connector.

Is the continuity established between transfer harness connector
male terminals (A–1)1 and (A–1)7?

Replace the rear

speed sensor.

Go to 

Step 8

The reference

harness for the

rear speed

sensor is

short–circuited to

GND. Repair the

circuit.

Go to 

Step 6

6

1. Disconnect the A-1 connector.

Is the continuity established between transfer harness connector
terminals (A–1)2 and (A–1)7?

Replace the front

speed sensor.

Go to 

Step 8

The reference

harness for the

rear speed

sensor is

short–circuited to

GND. Repair the

circuit.

Go to 

Step 8

7

1. Turn off the starter switch.
2. Disconnect the ECU connector.
3. Turn on the starter switch.

Is the battery voltage observed between harness connector
terminals (C–59)12 and (C–60)25?

Repair the circuit.

Go to 

Step 8

The ECU has

failed. Replace

the ECU.

Go to 

Step 8

8

1. Check that all the parts are mounted.
2. Clear the trouble code.

Is this step complete?

Repeat the

“Diagnosis Flow”

Go to 

Step 8

SECTION

4B2–47

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

6

7

The voltage of the throttle position

sensor (TPS) is faulty

See below table.

P1716

sensor (TPS) is faulty.

NOTE: The signal voltage from the TPS deviates from
the standard range.

D04R100008

SECTION