Symptom:
CIRC PUMP CONTROL SHORTED
POSSIBLE CAUSES
CIRCULATION PUMP RELAY
CIRCULATION PUMP RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND
PUMP RELAY HIGH SIDE CONTROL CKT SHORTED TO PUMP RELAY GROUND CKT
CABIN HEATER CONTROL UNIT
TEST
ACTION
APPLICABILITY
1
WARNING: NEVER OPERATE THE HEATER IN AN ENCLOSED AREA
THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES. ALWAYS
VENT THE EXHAUST WHEN OPERATING THE HEATER. FAILURE TO
FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY
OR DEATH.
CAUTION: DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY
THE HEATER PRE-TEST. ALWAYS PERFORM THE HEATER PRE-TEST
PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE
VALID.
Turn the ignition off.
Install a substitute relay in place of the Circulation Pump Relay.
Turn the ignition on.
Verify that the Cabin Heater is switched off.
Set the blend control to the max heat position and the mode control to the floor
position.
With the DRBIII
t
, erase the Cabin Heater Module’s DTCs.
Start the engine. Allow the engine to idle.
With the DRBIII, monitor for Cabin Heater Module DTCs while performing the
following step.
NOTE: Do not disconnect the vehicle’s battery or the heater’s main power
supply while the heater is in operation or in run-down mode. Failure to
follow these instructions can result in excess emissions from the heater
during heater operation.
Switch the Cabin Heater on. If necessary, allow the heater to run through at least one
cycle of operation (approximately 10 minutes), and then switch the heater off.
Turn the engine off.
Does the DRBIII
t
display: CIRC PUMP CONTROL SHORTED?
All
Yes
→
No
→
Replace the original Circulation Pump Relay in accordance with
the Service Information.
Perform HEATER VERIFICATION TEST - VER 1.
74
CABIN HEATER
Содержание Sprinter 2003
Страница 8: ...NOTES viii ...
Страница 22: ...NOTES 14 ...
Страница 23: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 15 ...
Страница 255: ...8 9 3 SWITCHES 8 9 4 SIREN C O M P O N E N T L O C A T I O N S 247 COMPONENT LOCATIONS ...
Страница 256: ...NOTES 248 ...
Страница 267: ...C O N N E C T O R P I N O U T S 259 CONNECTOR PINOUTS ...
Страница 273: ...C O N N E C T O R P I N O U T S 265 CONNECTOR PINOUTS ...
Страница 280: ...NOTES 272 ...
Страница 281: ...10 0 SCHEMATIC DIAGRAMS 10 1 AIRBAG SYSTEM S C H E M A T I C D I A G R A M S 273 SCHEMATIC DIAGRAMS ...
Страница 282: ...10 2 COMMUNICATION 10 2 1 COMMUNICATION K LINES S C H E M A T I C D I A G R A M S 274 SCHEMATIC DIAGRAMS ...
Страница 283: ...10 2 2 CAN BUS NETWORK S C H E M A T I C D I A G R A M S 275 SCHEMATIC DIAGRAMS ...
Страница 284: ...10 3 HEATING A C 10 3 1 AUTOMATIC TEMPERATURE CONTROL ATC S C H E M A T I C D I A G R A M S 276 SCHEMATIC DIAGRAMS ...
Страница 285: ...10 3 2 CABIN HEATER MODULE CHM S C H E M A T I C D I A G R A M S 277 SCHEMATIC DIAGRAMS ...
Страница 286: ...10 3 3 HEATER BOOSTER MODULE HBM S C H E M A T I C D I A G R A M S 278 SCHEMATIC DIAGRAMS 10 3 HEATING A C Continued ...
Страница 287: ...10 4 INSTRUMENT CLUSTER S C H E M A T I C D I A G R A M S 279 SCHEMATIC DIAGRAMS ...
Страница 288: ...10 5 POWER DOOR LOCKS RKE 10 5 1 FRONT DOORS S C H E M A T I C D I A G R A M S 280 SCHEMATIC DIAGRAMS ...
Страница 289: ...10 5 2 SLIDING AND REAR DOORS S C H E M A T I C D I A G R A M S 281 SCHEMATIC DIAGRAMS ...
Страница 291: ...10 6 VEHICLE THEFT SECURITY SYSTEM S C H E M A T I C D I A G R A M S 283 SCHEMATIC DIAGRAMS ...
Страница 292: ...NOTES 284 ...
Страница 294: ...NOTES 286 ...
Страница 296: ...Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757 ...