DESCRIPTION
The DLC3 circuit enables reading of Diagnostic Trouble Codes (DTCs) with no Techstream by connecting terminals TC and CG of the DLC3 connector.
Stored DTCs are displayed in blinking patterns of the CRUISE MAIN indicator light located on the combination meter.
WIRING DIAGRAM
HINT:
When a particular warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in the relevant ECU is suspected.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) |
(a) Disconnect the E21 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D4-13 (TC) - E14-20 (TC) |
Always |
Below 1 Ω |
(c) Reconnect the ECM connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (TC of DLC3 - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK |
REPLACE ECM |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL HAZARD WARNING SIGNAL SWITCH ASSEMBLY (AIR CONDITIONING CONTROL ASSEMBLY)
(for Automatic Air Conditioning System)
(a) Connect the connectors.
(b) Engage the 8 clips to hazard warning signal switch assembly (air conditioning
control assembly).
2. INSTALL HAZ ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
NOTICE:
If one of the camshaft timing gear bolts is already removed, do not remove any
other camshaft timing gear bolts.
PROCEDURE
1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package)
2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
3. REMOVE ...