Chrysler PT Cruiser Service & Repair Manual page 419

PT
INSTRUMENT CLUSTER (Continued)
instrument cluster operates in the same manner as
non-export clusters. Refer to the appropriate Body
Diagnostic Procedures manual for complete diagnosis
and testing of the instrument cluster.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - INSTRUMENT
CLUSTER WARNING/INDICATOR LAMPS
Every time the vehicle is switched to the START/
RUN position, the cluster goes through a BULB
CHECK. This tests most of the indicator lamps and
Vacuum Fluorescent (VF) displays. If any of the
lamps fail to light during the bulb check, refer to the
proper Body Diagnostic Procedures manual. The
lamps are not replaceable except for the high beam
indicator and gauge illumination bulbs. None of these
though will illuminate, along with the security indi-
cator, during the bulb check at initial KEY ON.
To diagnose the cluster lamps first place the cluster
in self-diagnostic mode. With the ignition switch in
the OFF position, press the trip odometer reset button
down. Simultaneously turn the ignition key to the ON
position and release the trip reset button. Depending
on optional equipment, the indicator lamps and VF
displays should illuminate except for the fog lampm
liftgate ajar, and any unlearned features.
DIAGNOSIS AND TESTING - MULTIPLE/
INDIVIDUAL GAUGES INOPERATIVE
Test speedometer, tachometer and other gauges for
malfunction using the following:
(1) First perform Cluster Self-Diagnostics (Refer to
8 - ELECTRICAL/INSTRUMENT CLUSTER - STAN-
DARD PROCEDURE). If there is a response, watch
for the effected gauge(s) for operation. Replace clus-
ter as necessary. If there is no response to the cluster
self-diagnostics, go to Step 2.
(2) Remove the cluster (Refer to 8 - ELECTRICAL/
INSTRUMENT CLUSTER - REMOVAL).
(3) Check for ignition voltage at Pin 14 of the
26-way cluster wire harness connector. Refer to Wir-
ing Diagrams for connector views. Check for battery
voltage at Pin 4 of the 26-way connector. If no volt-
age, repair as necessary.
(4) Check Pin 1 and Pin 2 of the 26-way connector
for continuity to ground. If no ground, repair as nec-
essary.
(5) If the voltage and ground are OK, and the pins
or the connectors are not distorted, replace the
instrument cluster(Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - REMOVAL).
(6) Autostick clusters only - In KEY UNLOCK/
RUN/START there is B+ battery voltage at Pin 15 of
the 26-way connector. Refer to Step 3.
INSTRUMENT CLUSTER
26-WAY CLUSTER HARNESS CONNECTOR PIN
CALL-OUT
CAV. FUNCTION
1 POWER GROUND
2 LOGIC GROUND
3 PARK LAMP ILLUMINATION FEED
4 BATTERY FEED - M1
5
6
7 DOME/MAP/CARGO LAMP
8
9 DRIVER DOOR AJAR
10 LEFT TURN OUTPUT (DRL)
11 LEFT TURN SIGNAL INPUT
12 RIGHT TURN OUTPUT (DRL)
13 RIGHT TURN SIGNAL INPUT
14 IGNITION RUN/START
15 UNLOCK/RUN/START (AUTOSTICK ONLY
16 SPARE OUTPUT B
17
18 HIGH BEAM
19 KEY-IN IGNITION
20 SEAT BELT
21 PARK BRAKE
22 PANEL ILLUMINATION DRIVER
23 PASSENGER DOOR AJAR
24 LIFTGATE AJAR
25 PROGRAM VPM
26 PCI BUS
10-WAY CLUSTER HARNESS CONNECTOR PIN
CALL-OUT
CAV. FUNCTION
1 FRONT FOG
2 VEHICLE THEFT/SECURITY SYSTEM
(VTSS)
3 SPARE INPUT 5
4 SPARE INPUT 4
5 SPARE INPUT 3
6 REAR FOG
7 PANEL DIMMING LEVEL
8 REVERSE INPUT
9 FUEL SENSOR
10 SPARE INPUT 2
8J - 3