Mitsubishi L200. Manual — part 774

RV METER

CHASSIS ELECTRICAL

54A-463

TROUBLE JUDGEMENT
If the RV meter cannot communicate with ETACS-
ECU when the ignition switch is turned to the ACC
position, the diagnosis code No. 19 is set.

COMMENT ON TROUBLE SYMPTOM
The harness or connector between the ETACS-ECU
and RV meter may be faulty.

PROBABLE CAUSES

• Malfunction of the RV meter

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

• Malfunction of the CAN bus

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the CAN bus line (Refer to GROUP
54C

− Troubleshooting ). On completion, go

to Step 2.

STEP 2. M.U.T-III other system diagnosis code.
Check whether the ETACS-ECU diagnosis code is
set.

Q: Is the diagnosis code set?

YES :

Diagnose ETACS-ECU (Refer to ETACS-

ECU, Troubleshooting

P.54A-462

). After

diagnosing the ETACS-ECU, go to Step 3.

NO :

Go to Step 3.

STEP 3. M.U.T-III other system diagnosis code.
Check if a diagnosis code, which relates to CAN
communication-linked systems below, is set.
Engine-ECU

• diagnosis code U1109: ETACS-ECU time out

Q: Is the diagnosis code set?

YES :

Go to Step 4.

NO :

Go to Step 5.

STEP 4. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)

position to "ON" position.

(3) On completion, check that the diagnosis code is

not reset.

Q: Is the diagnosis code set?

YES :

Replace the ETACS-ECU and register the

ID codes (Refer to

P.54A-39

).

NO :

The trouble can be an intermittent
malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

STEP 5. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)

position to "ON" position.

(3) On completion, check that the diagnosis code is

not reset.

Q: Is the diagnosis code set?

YES :

Replace the RV meter.

NO :

The trouble can be an intermittent
malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

Code No. 26: Engine CAN Timeout

CAUTION

• If diagnosis code No.26 is set in the RV meter,

diagnose the CAN main bus line.

• Whenever the RV meter is replaced, ensure

that the communication circuit is normal.

NOTE: When the diagnosis codes relating to the
CAN communication error are set, make sure of the

vehicle equipment. When the vehicle is not equipped
with the system the RV meter communicates to, the
diagnosis code is always output. This is not abnor-
mal.
TROUBLE JUDGEMENT
If the engine ECU is not communicated from the RV
meter, the diagnosis code No. 26 is set.

RV METER

CHASSIS ELECTRICAL

54A-464

COMMENT ON TROUBLE SYMPTOM
The harness or connector between the engine-ECU
and RV meter may be faulty.

PROBABLE CAUSES

• Malfunction of the RV meter

• Malfunction of the engine-ECU

• Damaged harness wires and connectors

• Malfunction of the CAN bus

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the CAN bus line (Refer to GROUP
54C

− Troubleshooting ). On completion, go

to Step 2.

STEP 2. M.U.T-III other system diagnosis code.
Check whether the DIESEL system-related diagno-
sis code is set.

Q: Is the diagnosis code set?

YES :

Diagnose DIESEL system. (Refer to

GROUP 13A

− Troubleshooting .) After

diagnosing the DIESEL system, go to Step
3.

NO :

Go to Step 3.

STEP 3. M.U.T-III other system diagnosis code.
Check if a diagnosis code, which relates to CAN
communication-linked systems below, is set.
ETACS-ECU

• diagnosis code U1100: Engine-ECU time-out

Q: Is the diagnosis code set?

YES :

Go to Step 4.

NO :

Go to Step 5.

STEP 4. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)

position to "ON" position.

(3) On completion, check that the diagnosis code is

not reset.

Q: Is the diagnosis code set?

YES :

Replace the engine-ECU.

NO :

The trouble can be an intermittent
malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

STEP 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)

position to "ON" position.

(3) On completion, check that the diagnosis code is

not reset.

Q: Is the diagnosis code set?

YES :

Replace the RV meter.

NO :

The trouble can be an intermittent
malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

Code No. 29: No receive fault detect signal

CAUTION

• If diagnosis code No.29 is set in the RV meter,

diagnose the CAN main bus line.

• Whenever the RV meter is replaced, ensure

that the communication circuit is normal.

TROUBLE JUDGEMENT
If ETACS-ECU cannot communicate with the RV
meter for 5 seconds when the ignition switch is
turned from "LOCK" (OFF) position to "ON" position,
the diagnosis code No. 29 is set.

COMMENT ON TROUBLE SYMPTOM
The harness or connector between the ETACS-ECU
and RV meter may be faulty.

PROBABLE CAUSES

• Malfunction of the RV meter

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

• Malfunction of the CAN bus

RV METER

CHASSIS ELECTRICAL

54A-465

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the CAN bus line (Refer to GROUP
54C

− Troubleshooting ). On completion, go

to Step 2.

STEP 2. M.U.T-III other system diagnosis code.
Check whether the ETACS-ECU diagnosis code is
set.

Q: Is the diagnosis code set?

YES :

Diagnose ETACS-ECU (Refer to ETACS-

ECU, Troubleshooting ). After diagnosing
the ETACS-ECU, go to Step 3.

NO :

Go to Step 3.

STEP 3. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF)

position to "ON" position.

(3) On completion, check that the diagnosis code is

not reset.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

Use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the RV meter.

SYMPTOM CHART

M1543007202829

SYMPTOM

Inspection
procedure

Reference
page

The RV meter does not show any information.

1

P.54A-466

The drive information is not displayed normally.

2

P.54A-474

The ambient air temperature is not displayed normally.

<Vehicles without auto
A/C>

3

P.54A-478

<Vehicles with auto A/
C>

P.54A-481

The freeze mark does not illuminate or flash normally. The freeze warning buzzer
does not sound.

4

P.54A-481

The compass does not indicate normally.

5

P.54A-483

The radio and CD player information is not displayed normally.

6

P.54A-484

RV METER

CHASSIS ELECTRICAL

54A-466

SYMPTOM PROCEDURES

Inspection Procedure 1: The RV meter does not show any information.

CIRCUIT OPERATION

• The RV meter receives the ACC signal from the

ignition switch via the harness wire.

• The RV meter receives the IG1 signal from the

ETACS-ECU by CAN communication, and at the
same time it supplementally receives the signal
from the ignition switch via the harness wire.

RV Meter Power Source Circuit

FUSIBLE
LINK

20

IGNITION
SWITCH (IG1)

RV METER

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver

IGNITION
SWITCH (ACC)

<RHD>