Mitsubishi Montero (1991+). Manual - part 220

Fig. 4: 18-Way ECU Connector

Courtesy of Chrysler Motors.

Fig. 5: 24-Way ECU Connector

Courtesy of Chrysler Motors.

Fig. 6: Self-Diagnostic Connector Terminal Identification

Courtesy of Mitsubishi Motor Sales of America.

FAULT CODES

FAULT CODES TABLE

Fault Code System Fault Description

11 .................... Open or short in O2 sensor circuit

12 ............... Open or short in airflow sensor circuit

13 ...... Open or short in intake air temp. sensor circuit

14 .......................... Open or short in TPS circuit

15 (1) .... Open or short in motor position sensor circuit

21 ......... Open or short in coolant temp. sensor circuit

22 ........ No voltage change in crank angle sensor signal

23 ............... No voltage change in TDC sensor circuit

24 (2) .. No voltage change in vehicle speed sensor signal

25 ........... Open or short in barometric pressure sensor

31 (3) ........ Open or short in detonation sensor circuit

41 ..................... Open or short in injector circuit

42 .............. Open or short in fuel pump drive circuit

43 (4) ......... Open or short in EGR temp. sensor circuit

44 (5) ..... Open or short in either ignition coil circuit

(1) - Except Montero & Sigma.

(2) - Will not turn on CHECK ENGINE light.

(3) - 2.0L turbo only.

(4) - California only. Except Sigma.

(5) - Chrysler Motors models only.

CLEARING CODES

Using DRB-II, from main menu select ADJUSTMENTS. Enter ERASE

FAULTS. Follow DRB-II instructions to accomplish this task. If DRB-II

is not available, fault codes may be cleared by disconnecting negative

battery cable for at least 10 seconds, allowing ECU to clear fault

codes.

TEST CHARTS

* PLEASE READ THIS FIRST *

NOTE: The following charts are supplied for Chrysler Motors

vehicles.

NS-1: TESTING IGNITION CIRCUIT - 1.5L

Fig. 7: Circuit Diagram NS-1 (1.5L) (1 of 2)

Fig. 8: Circuit Diagram NS-1 (1.5L) (2 of 2)

Fig. 9: Flow Chart NS-1 (1.5L) (1 of 3)

Fig. 10: Flow Chart NS-1 (1.5L) (2 of 3)