Nada

Chapter 10

Isuzu

This chapter contains information for testing Isuzu vehicles with the Asian Import Vehicle Communication Software (VCS). The following Isuzu systems may be available for testing:

• • • • • •

Engine Transmission Antilock Brake System (ABS) Supplemental Restraint System (SRS) Transfer Case Body Control Module (BCM)

10.1 Testing Engine and Transmission Systems
Isuzuengine and transmission system testing includes:

• • • • • •

“Engine And Transmission Code Reading Connectors and Locations” on page 97 “Manual Code reading (Engine)” on page 103 “Hard Codes and Soft Codes” on page 104 “Clearing Codes” on page 104 “Road Test (No C&D)” on page 105 “Field Service Functional Tests” on page 105

10.1.1 Engine And Transmission Code Reading Connectors andLocations
Figure 10-1 and Table 10-1 on page 98 show common engine diagnostic connector locations for Isuzu vehicles. Figure 10-2 and Table 10-2 on page 99 show common transmission diagnostic connector locations. The following engine and transmission code reading procedures are included:

• “To read codes from 1986–87 Trooper:” on page 99 • “To read codes from 1984–95 Pickup 1988–95 Amigo, and1991–95 Rodeo:” on
page 101

• • • • •

“To read codes from vehicles with a 12-pin connector:” on page 102 “To read codes from 1988–89 Impulse:” on page 102 “To read codes from 1985½–89 I-Mark and 1990 and later Impulse:” on page 103 “To read codes from 1988–89 Impulse (optional):” on page 103 “To read codes from 1985½–89 I-Mark and 1990 and later Impulse (optional):” on page 103

97

Chapter 10Isuzu

Testing Engine and Transmission Systems

4 3 and 4 Under the Console 5 3 2 1 6

ENGINE

Figure 10-1 Isuzu common engine connector location Table 10-1 Common engine connector locations

VEHICLE Amigo Ascender Axiom I-Mark Impulse Pickup Rodeo Stylus Trooper Trooper 2.3L Trooper 2.6L Trooper 2.8L Vehicross

YEAR 1990–94 2003–04 2002–04 1984–89 1984–89 1990–92 1990–95 1990–951996–2004 1990–93 1990–91 1992–94 1996–2002 1986–87 1988–91 1989–91 1999–2001

CONNECTOR LOCATION 1 (ECM) 1 1 5 5 1 (ECM) 1 (ECM) 1 (ECM) 1 1 (ECM) 1 (ECM) 6 (ECM) 1 2 4 3 1

98

1 2

ENGINE

Figure 10-2 Common transmission connector locations Table 10-2 Common transmission connector locations

VEHICLE Amigo Impulse Pickup Rodeo Stylus Trooper

YEAR 1990–94 1990–92 1990–95 1990–95 1990–931990–91 1992–94

CONNECTOR LOCATION 1 1 1 1 1 1 2

i

NOTE: The 1984–85 Trooper connector is hard to find (Figure 10-3).

Figure 10-3 1984–1985 Isuzu Trooper diagnostic connector

z

To read codes from 1986–87 Trooper:

• Connect the MULTI-1 adapter to the ALDL or diagnostic connector (Figure 10-4 on
page 100).

99

Chapter 10 Isuzu

Testing Engine and Transmission SystemsC

A

B

Figure 10-4 1986–87 Trooper connectors and adapter

A—ALDL connector B—Diagnostic connector C—MULTI-1 adapter Diagnostic connector locations for the 1988–91 Trooper are shown in Figure 10-5.

D

A B
Figure 10-5 1988–91 Trooper connectors

C

A—ALDL connector B—Distributor set timing connector C—ECM D—Diagnostic lead terminal Diagnostic connector locations for the1984–95 Pickup, 1988–95 Amigo, and 1991–95 Rodeo are shown in Figure 10-6 on page 101.

100

A

B

C D

E

Figure 10-6 1984–95 Pickup, 1988–95 Amigo, and 1991–95 Rodeo connectors

A—1984–87 Impulse (leads and ALDL not shown) B—RWAL 1-pin connector C—ALDL (3-pin connector) D—Timing set connector E— Diagnostic leads (connect together for flash codes)

z

To read codes from 1984–95 Pickup1988–95 Amigo, and 1991–95 Rodeo:

• Connect the MULTI-1 adapter with the white terminal converters (Figure 10-7 and
Figure 10-8).

Diagnostic Connector Green 1 2 White 3 Black

MULTI-1 Adapter

Figure 10-7 1984–95 Pickup 1988–95 Amigo, and 1991–95 Rodeo connector and adapter

A C D B

Figure 10-8 1988–91 Trooper with automatic transmission connector location

A—Hood release...