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)